Yakubu, H. ., N. Abdullah, and K. . Kaur. “ Sustainability of Digital Collections for Nigerian Academic Libraries: An Exploration of Conception, Indicators for Fulfillment and Accrued Benefits”. Malaysian Journal of Library and Information Science, vol. 27, no. 1, Apr. 2022, pp. 73-91, doi:10.22452/mjlis.vol27no1.5.