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 [Интернет]. 14 июнь 2023 г. [цитируется по 22 июль 2025 г.];1(1):1-14. доступно на: https://ljisr.net.ng/index.php/lis/article/view/2