Haque, Ziaul. “THE NATURE OF RIBĀ AL-NASĪ’A AND RIBĀ AL-FAḌL”. Islamic Studies 21, no. 04 (December 31, 1982): 19–38. Accessed February 21, 2026. http://irigs.iiu.edu.pk:64447/ojs/index.php/islamicstudies/article/view/5982.