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”. ` 4, no. 01 (September 30, 2025): 4538–4561. Accessed November 6, 2025. https://assajournal.com/index.php/36/article/view/1021.