El-Badawi, Mohamed H., and Sultan M. Al-Sultan. “Net Working Capital Versus Net Owner’s Equity Approaches to Computing Zakatable Amount: A Conceptual Comparison and Application”. American Journal of Islam and Society 9, no. 1 (April 1, 1992): 69–85. Accessed January 10, 2025. https://mail.ajis.org/index.php/ajiss/article/view/2593.