A. Chime и L. Ekwueme, «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, т. 1, вып. 2, сс. 1–17, дек. 2023, просмотрено: 22 июль 2025 г. [онлайн]. доступно на: https://ljisr.net.ng/index.php/lis/article/view/14