ABDULLAH, N.; MOHD YUSOP, M. M.; HJ. AWANG, C. O. A Technical Note on The Derivation of Zakat Effectiveness Index (Zein). International Journal of Economics, Management and Accounting, [S. l.], v. 20, n. 1, 2013. DOI: 10.31436/ijema.v20i1.188. Disponível em: https://journals.iium.edu.my/enmjournal/index.php/enmj/article/view/188. Acesso em: 25 apr. 2024.