Wan Razali, Wan Mohd Fazrul Azdi, and Jaffary Awang. “Exploring Ibn Khaldun’s Views On The Religious Roles Towards Happiness: A Study Of Religionswissenschaft In The Muqaddimah”. Ulum Islamiyyah 27, no. 1 (May 17, 2019): 24-36. Accessed September 22, 2019. http://uijournal.usim.edu.my/index.php/uij/article/view/130.