K, Dharmarajan, and M. A. Dorairangaswamy. “Discovering Student E-Learning Preferred Navigation Paths Using Selection Page and Time Preference Algorithm”. International Journal of Emerging Technologies in Learning (iJET) 12, no. 10 (November 2, 2017): pp. 202–211. Accessed January 24, 2022. https://online-journals.org/index.php/i-jet/article/view/7246.