AHMAD, Abu Umar Faruq; HASSAN, M. Kabir. The Time Value of Money Concept in Islamic Finance. American Journal of Islam and Society, USA, v. 23, n. 1, p. 66–89, 2006. DOI: 10.35632/ajis.v23i1.436. Disponível em: https://mail.ajis.org/index.php/ajiss/article/view/436. Acesso em: 27 oct. 2025.