Chime A, Ekwueme L. Assessing the Usage of Electronic Information Resources and the Nature of Research Output by Postgraduate Students in Federal University Libraries in South-East, Nigeria. LJISR [Интернет]. 18 декабрь 2023 г. [цитируется по 22 июль 2025 г.];1(2):1-17. доступно на: https://ljisr.net.ng/index.php/lis/article/view/14