CC BY 3.0Johnson, SharonEvensen, Ole GunnarGelfand, JuliaLammers, GlendaSipe, LynnZilper, NadiaIFLA Acquisition and Collection Development CommitteeFronty, JérômeHafner, JosephMansfield, JudyOkerson, AnnSchmolling, Regine2021-03-232013-01-162021-03-232013-01https://repository.ifla.org/handle/20.500.14598/422The purpose of this Guide is to help develop an awareness of the key issues that every library will need to consider and address in developing an e-portfolio. The Guide is not intended to be exhaustive, but is written to provide a reasonable and informed introduction to the wide range of issues presented by e-resources.arhttps://creativecommons.org/licenses/by/3.0/Subject::Collection developmentتنمية مجموعات المصادر القضايا الرئيسية ل دليل للمكتباتKey Issues for e-Resource Collection Development: A Guide for LibrariesStandardsInternational Federation of Library Associations and Institutions (IFLA)