F. S. Muhammud and N. A. H. Umor, “ILLEGAL CURRENCY TRADING SCHEME: AN EMPIRICAL STUDY FROM ISLAMIC PERSPECTIVE”, ULWAN, vol. 9, no. 1, pp. 64–71, Jun. 2024, Accessed: Mar. 21, 2026. [Online]. Available: https://www.ejournal.unimel.edu.my/index.php/JULWAN/article/view/1674