Aslam Rao, Dr. Atif. 2017. “Preaching and Propagation in Islam”. The Islamic Culture "As-Saqafat-Ul Islamia" الثقافة الإسلامية - Research Journal - Sheikh Zayed Islamic Centre, University of Karachi, no. 37 (June):183-94. http://www.theislamicculture.com/index.php/tis/article/view/430.