Salahuddin, Ashraf Ali, and Roslina Othman. “A Delphi Study On Online Qur’ānic Themes”. International Journal on Perceptive and Cognitive Computing 5, no. 2 (December 15, 2019): 97-105. Accessed May 31, 2020. https://journals.iium.edu.my/kict/index.php/IJPCC/article/view/95.