International Journal of Data and Network Science最新文献

筛选
英文 中文
EFN-SMOTE: An effective oversampling technique for credit card fraud detection by utilizing noise filtering and fuzzy c-means clustering EFN-SMOTE:一种利用噪声滤波和模糊c均值聚类的信用卡欺诈检测的有效过采样技术
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2023.6.003
Hadeel Ahmad, B. Kasasbeh, Balqees AL-Dabaybah, Enas F. Rawashdeh
{"title":"EFN-SMOTE: An effective oversampling technique for credit card fraud detection by utilizing noise filtering and fuzzy c-means clustering","authors":"Hadeel Ahmad, B. Kasasbeh, Balqees AL-Dabaybah, Enas F. Rawashdeh","doi":"10.5267/j.ijdns.2023.6.003","DOIUrl":"https://doi.org/10.5267/j.ijdns.2023.6.003","url":null,"abstract":"Credit card fraud poses a significant challenge for both consumers and organizations worldwide, particularly with the increasing reliance on credit cards for financial transactions. Therefore, it is crucial to establish effective mechanisms to detect credit card fraud. However, the uneven distribution of instances between the two classes in the credit card dataset hinders traditional machine learning techniques, as they tend to prioritize the majority class, leading to inaccurate fraud pre- dictions. To address this issue, this paper focuses on the use of the Elbow Fuzzy Noise Filtering SMOTE (EFN-SMOTE) technique, an oversampling approach, to handle unbalanced data. EFN-SMOTE partitions the dataset into multiple clusters using the Elbow method, applies noise filtering to each cluster, and then employs SMOTE to synthesize new minority instances based on the nearest majority instance to each minority instance, thereby improving the model’s ability to perceive the decision boundary. EFN-SMOTE’s performance was evaluated using an Artificial Neural Network model with four hidden layers, resulting in significant improvements in classification performance, achieving an accuracy of 0.999, precision of 0.998, sensitivity of 0.999, specificity of 0.998, F-measure of 0.999, and G-Mean of 0.999.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70777633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Perceived of ease of use and usefulness: Empirical evidence of behavioral intention to use QR code technology on Indonesian commuter lines 易用性和实用性的感知:在印度尼西亚通勤线路上使用QR码技术的行为意图的经验证据
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2023.7.010
P. Ricardianto, Atong Soekirman, Ocky Soelistyo Pribadi, Difa Bagas Atmaja, Abdullah Ade Suryobuwono, Ikawati Ikawati, Tri Gutomo, Sri Yuni Murtiwidayanti, S. A. Cahyono, Endri Endri
{"title":"Perceived of ease of use and usefulness: Empirical evidence of behavioral intention to use QR code technology on Indonesian commuter lines","authors":"P. Ricardianto, Atong Soekirman, Ocky Soelistyo Pribadi, Difa Bagas Atmaja, Abdullah Ade Suryobuwono, Ikawati Ikawati, Tri Gutomo, Sri Yuni Murtiwidayanti, S. A. Cahyono, Endri Endri","doi":"10.5267/j.ijdns.2023.7.010","DOIUrl":"https://doi.org/10.5267/j.ijdns.2023.7.010","url":null,"abstract":"This study aims to estimate the factors determining the perceived behavioral Intention to use the QR code on a smartphone in the commuter line tap-in tap-out ticketing process as an alternative payment. The rapid growth of information technology in the last two decades had become a factor that encouraged individuals and groups to utilize information technology from devices or technological tools as effectively and efficiently as possible to facilitate the activities and business processes being carried out. This research used the probability sampling technique with a random sampling of 100 commuter line passengers. In addition, this research used the data analysis technique of the Structural Equation Model-SmartPLS3.0. The results indicated that perceived compatibility and enjoyment significantly affected the perceived ease of use and usefulness in the consumer's behavioral Intention to use QR Code technology on smartphones as a substitution for purchasing commuter train tickets. However, the three other variables, perceived convenience, self-efficacy, and enjoyment, do not significantly influence the usefulness of using QR Code Technology on smartphones as an alternative for purchasing commuter tickets, and neither do the technological knowledge and perceived compatibility.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70778882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adequate legal rules in settling metaverse disputes: Hybrid legal framework for metaverse dispute resolution (HLFMDR) 解决元争议的充分法律规则:元争议解决的混合法律框架(HLFMDR)
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2023.8.001
Adel Salem AlLouzi, K. Alomari
{"title":"Adequate legal rules in settling metaverse disputes: Hybrid legal framework for metaverse dispute resolution (HLFMDR)","authors":"Adel Salem AlLouzi, K. Alomari","doi":"10.5267/j.ijdns.2023.8.001","DOIUrl":"https://doi.org/10.5267/j.ijdns.2023.8.001","url":null,"abstract":"The term “metaverse” refers to a virtual reality setting where users may engage in sustained and immersive interactions with other users and digital information. The metaverse offers new potential for entertainment, education, commerce, sociability, and creativity; therefore, it is anticipated to play a significant role in the future of the digital economy. However, the metaverse presents additional difficulties in resolving conflicts that can develop between its users, producers, and providers. Intellectual property rights, privacy, contract enforcement, fraud, harassment, and cybercrime are some of the concerns that may be raised in these conflicts. The existing legal system for settling these conflicts is disjointed and insufficient since it does not consider the metaverse’s unique qualities and complexity. This study investigates the present legal framework to provide fair and effective conflict resolution in the metaverse. It then establishes tenable fundamentals within the context of scientific and legal foundations. and propose a theoretical model named Hybrid Legal Framework for Metaverse Dispute Resolution (HLFMDR).","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70779276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The role of cloud computing in supporting decision making: Evidence from banking industry 云计算在支持决策中的作用:来自银行业的证据
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2022.11.009
Heba Al-Malahmeh
{"title":"The role of cloud computing in supporting decision making: Evidence from banking industry","authors":"Heba Al-Malahmeh","doi":"10.5267/j.ijdns.2022.11.009","DOIUrl":"https://doi.org/10.5267/j.ijdns.2022.11.009","url":null,"abstract":"Current study aimed at examining the influence of cloud computing characteristics and attributes (on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service) on decision making process within commercial banks in Jordan. Quantitative approach was used, and a questionnaire was distributed on a sample of (104) managers within commercial banks in Jordan. SPSS was employed to process and analyze primary data, depending on multiple and linear regression; results of study accepted the main hypothesis, and it appeared that cloud computing attributes support organizational efforts for better decision making process. Study recommended examining the role of cloud computing in the field of accounting, in other meanings; investigate the role of cloud accounting in supporting financial decision making process.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70770173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The effect of e-WOM model mediation of marketing mix and destination image on tourist revisit intention e-口碑模型中介营销组合与目的地形象对游客重游意愿的影响
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2022.10.007
M. Adam, Mahdani Ibrahim, T. Putra, Mukhlis Yunus
{"title":"The effect of e-WOM model mediation of marketing mix and destination image on tourist revisit intention","authors":"M. Adam, Mahdani Ibrahim, T. Putra, Mukhlis Yunus","doi":"10.5267/j.ijdns.2022.10.007","DOIUrl":"https://doi.org/10.5267/j.ijdns.2022.10.007","url":null,"abstract":"Word-of-mouth (WOM) has been recognized as one of the most influential forms of information transmission. Advances in information technology and the emergence of online social networking sites have changed the manner in which data is delivered. This phenomenon has an impact on consumers because readily accessible information can significantly influence consumption-related decisions. The purpose of this paper is to examine the role of e-WOM in mediating the influence of the marketing mix and destination image on the intention of tourists to re-visit destinations. The primary data was derived from 190 tourist respondents and collected by means of questionnaires distributed via Google forms. The resulting data was analyzed using AMOS-SEM, while evaluating the role of e-WOM as a model involving a Sobel test. The results of the analysis indicated that e-WOM plays a highly significant role in piquing individual's' interest in re-visiting tourist sites. Contributory factors such as the marketing mix, destination image, and e-WOM all support this research hypothesis.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70770261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Integrating religiosity into a technology acceptance model for the adoption of mobile payment technology 将宗教信仰融入移动支付技术采用的技术接受模型
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2022.10.003
Kameswara Natakusumah, E. Maulina, A. Muftiadi, M. Purnomo
{"title":"Integrating religiosity into a technology acceptance model for the adoption of mobile payment technology","authors":"Kameswara Natakusumah, E. Maulina, A. Muftiadi, M. Purnomo","doi":"10.5267/j.ijdns.2022.10.003","DOIUrl":"https://doi.org/10.5267/j.ijdns.2022.10.003","url":null,"abstract":"This research studies the effects of the religiosity on financial technology (fintech) adoption. The study examines religiosity as part of the Technology Acceptance Model (TAM) dimensions for the adoption of mobile payment technology. We explore the role of religiosity in TAM and recommend several policies for related organizations. The study uses professional sample calculation from 113 traditional markets under Perumda Pasar Jaya as a business entity whose capital is wholly or mostly owned by the regional government through regional assets of DKI Jakarta Province, Indonesia, which use mobile payment technology. We obtained 363 respondents from June 2020 to June 2021, coinciding with the Covid-19 pandemic. Hypothesis testing was done employing SmartPLS 3.2.9 software and questionnaires. The study also adapts previous studies to ensure the questionnaires are relevant to the research objects. The research result show that religiosity explained the formation of TAM by small businesses in traditional markets under Perumda Pasar Jaya Management. Religiosity and the adoption of mobile payment technology determined whether a user used fintech or not. As the research period was limited to June 2020 - June 2021, including field research in the traditional markets, newer TAM mobile payment technology development and other TAM mobile payment-based research were not included. This research offers a new TAM development model using religiosity for mobile payment adoption in traditional markets.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70770366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Celebrity endorsement in social media contexts: understanding the role of advertising credibility, brand credibility, and brand satisfaction 社交媒体背景下的名人代言:广告可信度、品牌可信度和品牌满意度的作用
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2022.12.006
Sabar Sutia, Refren Riadi, Tukirin Tukirin, Indry A. Pradipta, M. Fahlevi
{"title":"Celebrity endorsement in social media contexts: understanding the role of advertising credibility, brand credibility, and brand satisfaction","authors":"Sabar Sutia, Refren Riadi, Tukirin Tukirin, Indry A. Pradipta, M. Fahlevi","doi":"10.5267/j.ijdns.2022.12.006","DOIUrl":"https://doi.org/10.5267/j.ijdns.2022.12.006","url":null,"abstract":"Online tutoring is a new phenomenon in Indonesia that is quite popular at the moment, especially after the pandemic. The emergence of online tutoring for schoolchildren provides families with an alternative option for educating their children; additionally, online learning becomes an effective alternative because it does not pose a health risk during a pandemic. Online tutoring marketing optimizes marketing strategies through digital content using celebrity endorsements. The purpose of this study was to examine the effects of a comprehensive new model of using celebrity endorsement based on its dimensions and its effect on brand satisfaction, advertising credibility, brand credibility, and repurchase intention. The data collection technique in this study was quantitative and involved distributing questionnaires to 175 respondents in the city of Jakarta. This study uses a structural equation model (SEM) with the SmartPLS tool. The results obtained are able to identify and measure the impact of celebrity endorsement in digital marketing strategies that have an impact on repurchase intention. The results of the study explain that all pathways proved to have a positive effect, unless expertise on repurchase intention has a negative effect. There are 6 hypotheses accepted and 8 hypotheses rejected. The biggest influence on repurchase intention is advertising credibility. In terms of the total indirect effect, only attractiveness and trustworthiness have a significant total effect on repurchase intention, while expertise does not have a significant total effect. The implications of this research can be used as a basis for determining a comprehensive strategy for online tutoring companies to retain their customers after the pandemic.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70770645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The role of social media, service quality and public relation on organization image 社会化媒体、服务质量和公共关系对组织形象的作用
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2022.9.006
W. Sunaryo, B. Rubini, Ubaid Al Faruk
{"title":"The role of social media, service quality and public relation on organization image","authors":"W. Sunaryo, B. Rubini, Ubaid Al Faruk","doi":"10.5267/j.ijdns.2022.9.006","DOIUrl":"https://doi.org/10.5267/j.ijdns.2022.9.006","url":null,"abstract":"A good Organizational Image is already known as the important factor in developing higher education organization. This research investigated the effect of marketing variables, namely Service Quality, Social Media and Public Relation, toward the Organizational Image. This research was conducted at private universities located in South Tangerang City, Indonesia. The sample of this research were 715 students taken in proportional random sampling from 8 private universities. The method of data collecting from each variable used the questionnaires, and data analysis used the Path Analysis Technique which was calculated by Smart PLS-SEM program. The research findings derived conclusions that (1) Service Quality, Social Media and Public Relation have significant effect on Organizational Image, and (2) The Social Media and Service Quality have significant effect on Public Relation. Based on those findings we recommend that improving the Organizational Image should be prioritized through strengthening the Service Quality, Social Media and Public Relation activities.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70774437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Antecedents of mobile banking app adoption during COVID19: A perspective of Jordanian consumer 2019冠状病毒病期间移动银行应用程序采用的先决条件:约旦消费者的视角
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2022.8.011
D. Almajali, A. Al-Radaideh, Nour Ali Nussir, Ali Abu Eid, Fu'ad Abdallah Al-fakeh, F. Masad
{"title":"Antecedents of mobile banking app adoption during COVID19: A perspective of Jordanian consumer","authors":"D. Almajali, A. Al-Radaideh, Nour Ali Nussir, Ali Abu Eid, Fu'ad Abdallah Al-fakeh, F. Masad","doi":"10.5267/j.ijdns.2022.8.011","DOIUrl":"https://doi.org/10.5267/j.ijdns.2022.8.011","url":null,"abstract":"The effect of contextual factors namely information quality, service quality, system quality, Technological readiness, trust in applications (app) and COVID-19 health anxiety, on the intention and consequently the actual use of Mobile Payment (MP) app was examined in this study. Trust, as mediator to the relationship between technological readiness and intention to use MB-app was examined also. Data were obtained from 740 Jordanian Mobile Banking (MB) app users through an online survey. The relationship between service quality, system quality, information quality, trust in the app, COVID-19 health anxiety, Technological readiness and the intentions to use MB-app and the actual use of MB-app was empirically examined. The results showed a positive relationship between service quality, system quality, information quality, trust in the app and COVID-19 health anxiety, and the intentions to use MB-app, and in turn he actual use of MB-app, and a positive mediation of trust on the relationship between COVID-19 health anxiety and the intentions to use MB-app.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70774474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Avoiding uncertain buying intentions: Does WebQual matter? 避免不确定的购买意向:WebQual重要吗?
International Journal of Data and Network Science Pub Date : 2023-01-01 DOI: 10.5267/j.ijdns.2022.9.004
N. Nusairat, Khalid N. Alzubi, Lama Abubaker, Hadeel J. Abdellatif, A. H. Akhorshaideh, We’am Aref Alkhalayleh, J. Al-Gasawneh
{"title":"Avoiding uncertain buying intentions: Does WebQual matter?","authors":"N. Nusairat, Khalid N. Alzubi, Lama Abubaker, Hadeel J. Abdellatif, A. H. Akhorshaideh, We’am Aref Alkhalayleh, J. Al-Gasawneh","doi":"10.5267/j.ijdns.2022.9.004","DOIUrl":"https://doi.org/10.5267/j.ijdns.2022.9.004","url":null,"abstract":"The purpose of this research is to examine the effect of Web Quality (WebQual) on travelers’ online behavioral intentions through examining the mediating role of travelers’ perceived trust in the context of travel agencies in Jordan. Based on the extant literature, a conceptual model was developed. Data was collected through a questionnaire survey which was administered to a convenient sample of 300 participants. Structural equation modeling SEM with smart PLS 3 was implemented as an analytical methodology to process data. The results suggest that WebQual factors are significant in predicting travelers’ behavioral intentions. Moreover, the results demonstrate that perceived trust has a significant impact on travelers’ behavioral intentions and a partial mediation was also found for travelers’ perceived trust on the relationship between WebQual and travelers’ behavioral intentions. Discussion, conclusions, research limitations and areas for future research are all provided.","PeriodicalId":36543,"journal":{"name":"International Journal of Data and Network Science","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70774765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信