ABDALLAH, S. S. THEOLOGY AND THE FRAGMENTATION OF THE UMMAH: TOWARDS A THEOLOGY OF UNITY. Al-Shajarah: Journal of the International Institute of Islamic Thought and Civilization (ISTAC), [S. l.], v. 17, n. 1, 2014. Disponível em: https://journals.iium.edu.my/shajarah/index.php/shaj/article/view/9. Acesso em: 23 oct. 2021.