Dr. Abad ur Rahman, Dr. Tahmina Fazil, and Dr. Muhammad Asim Shahbaz. “Economic Principles of the Rightly Guided Caliphs and the Contemporary Financial System: A Comparative Study”. `, vol. 4, no. 01, Sept. 2025, pp. 4538-61, https://assajournal.com/index.php/36/article/view/1021.