Waqas Hashmi, Syed. “The Financial System of Islamic State”. The Islamic Culture "As-Saqafat-ul Islamia" الثقافة الإسلامية - Research Journal - Sheikh Zayed Islamic Centre, University of Karachi, no. 33 (June 30, 2015): 39–57. Accessed January 26, 2025. https://theislamicculture.com/index.php/tis/article/view/550.