رمزي عبد القادر هاشم. Ramzi, Abdul Qader. “Sufism and the Islamic System: A Comparative Islamic Perspective," Year 9, Issue 36 (Spring 1425 AH/ 2004 CE), Pp. 41-86. Al-Fikr al-islāmī al-muʿāṣir (previously Islamiyat al-Ma’rifah), [S. l.], v. 9, n. 36, p. 86–41, 2004. DOI: 10.35632/citj.v9i36.1429. Disponível em: https://citj.org/index.php/citj/article/view/1429. Acesso em: 6 may. 2026.