Othman, N., and N. Johari. “Failure Rate Among the Students of Universiti Islam Selangor: The Case of Faculty of Management and Muamalah”. Proceedings of Femfest International Conference on Economics, Management, and Business, vol. 1, Mar. 2023, pp. 411-6, https://ejournal.unida.gontor.ac.id/index.php/FICCOMSS/article/view/10900.