Al-Sifaw, Saeed Ahmed Saeed, and Abdul Hakim Abdullah. “Designing of a Conceptual Framework for the Obstacles to Implementing E-Learning in Teaching Chemistry in Nalut Libyan High Schools”. Journal of Educational and Psychological Sciences 4, no. 5 (February 29, 2020): 232–214. Accessed December 21, 2025. https://www.ajsrp.ojsexpert.com/index.php/jeps/article/view/2221.