AHMAD, M. An empirical study of the challenges facing zakat and waqf institutions in Northern Nigeria. ISRA International Journal of Islamic Finance, [S. l.], v. 11, n. 2, p. 338–356, 2019. Disponível em: https://journal.inceif.edu.my/index.php/ijif/article/view/437. Acesso em: 17 may. 2024.