Badali, M., J. Hatami, S. K. Banihashem, E. Rahimi, O. Noroozi, and Z. Eslami. “The Role of Motivation in MOOCs’ Retention Rates: A Systematic Literature Review”. Research and Practice in Technology Enhanced Learning, vol. 17, June 2022, https://rptel.apsce.net/index.php/RPTEL/article/view/2022-17005.