Normana, M. P., S. Man, and M. Z. Zainuddin. “APPLICATION OF METHODS OF WESTERNMOST POINT AND MULTIPLE REFERENCE POINTS IN DETERMINING ZONE-BASED PRAYER TIME: A STUDY IN SELANGOR”. Online Journal of Research in Islamic Studies, vol. 1, no. 3, Dec. 2014, pp. 23-42, https://vmis.um.edu.my/index.php/RIS/article/view/9884.