Wahab, N. A., Zainol, Z., Bakar, M. A., Ibrahim, A. Z. and Minhaj, N. (2016) “Developing Service Quality Index for Zakat Institutions”, International Journal of Economics and Financial Issues, 6(7S), pp. 249–258. Available at: https://www.econjournals.com/index.php/ijefi/article/view/3616 (Accessed: 23 April 2024).