Adekunjo, O. A., and S. O. Akande. “Impact of COVID-19 Pandemic on Use of Reference Sources and Services by Postgraduates’ in Kenneth Dike Library, University of Ibadan, Nigeria”. International Journal of Knowledge Content Development & Technology, vol. 13, no. 1, Mar. 2023, https://ijkcdt.journals.publicknowledgeproject.org/index.php/ijkcdt/article/view/665.