Smart AE, Ogbomo F. Awareness of Open Educational Resources (OER) and Utilization by Postgraduate Students of The National Open University of Nigeria in the South-South Region. LJISR [Internet]. 2023 Jun. 14 [cited 2025 Jul. 22];1(1):1-14. Available from: https://ljisr.net.ng/index.php/lis/article/view/2