Farouk, A. U., K. Md Idris, and R. A. J. Saad. “Determinants of Attitude Towards Zakat on Employment Income in Nigeria”. International Journal of Banking and Finance, vol. 13, no. 1, Mar. 2018, pp. 29-48, https://e-journal.uum.edu.my/index.php/ijbf/article/view/8497.