KAMAL, O. M. International Conference on Islamic Economics in the 21st Century. American Journal of Islam and Society, USA, v. 16, n. 4, p. 145–151, 1999. DOI: 10.35632/ajis.v16i4.2093. Disponível em: https://www.ajis.org/index.php/ajiss/article/view/2093. Acesso em: 16 jul. 2024.