Kraleva, Radoslava, Mehrudin Sabani, and Velin Kralev. “An Analysis of Some Learning Management Systems”. International Journal on Advanced Science, Engineering and Information Technology 9, no. 4 (August 14, 2019): 1190–1198. Accessed July 22, 2024. https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/9437.