SCHUMM, Walter R.; KOHLER, Alison L. Social Cohesion and the Five Pillars of Islam: A Comparative Perspective. American Journal of Islam and Society, USA, v. 23, n. 2, p. 126–136, 2006. DOI: 10.35632/ajis.v23i2.1635. Disponível em: https://mail.ajis.org/index.php/ajiss/article/view/1635. Acesso em: 27 oct. 2025.