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Research on the Deep Marketing Experience of Document Delivery Service in University Library ——Taking the Library of Renmin University of China as an Example
HU Jufang, WU Ning, CHEN Yajie
Journal of library and information science in agriculture . 2018, (8): 18 -22 .  DOI: 10.13998/j.cnki.issn1002-1248.2018.08.003