Namdar, Nader, Mehdi Moradi, Yaghoub Mohmodian, Mehdi Sadegi Shahdani, and Roghayieh Hassanzadeh. “Developing a Mathematical Equation to Predict Khums and Zakat in the Iranian Economy”. International Journal of Zakat 6, no. 2 (June 16, 2021): 43–62. Accessed May 4, 2026. https://mail.ijazbaznas.com/index.php/journal/article/view/292.