Daud, Yon Rosli, Mohd Rushidi bin Mohd Amin, and Jeannot bin Abdul Karim. “Antecedents of Student Loyalty in Open and Distance Learning Institutions: An Empirical Analysis”. The International Review of Research in Open and Distributed Learning 21, no. 3 (March 4, 2020): 18-40. Accessed October 20, 2021. http://www.irrodl.org/index.php/irrodl/article/view/4590.