Esan, Dorcas Oladayo, and Themba Masombuka. “Impact Assessment of Digital Learning Tools in South African Higher Education”. Journal of Information Systems and Informatics 7, no. 1 (March 19, 2025): 224–249. Accessed March 7, 2026. https://www.journal-isi.org/index.php/isi/article/view/999.