.LTAIEF, Mohamed. Concentration and Coherence of the Field in the Islamic State of the Caliphate from the Foundation to the End of the Umayyad Era(11-132 A.H) . The Algerian Historical Journal, [S. l.], v. 6, n. 01, p. 157–168, 2026. Disponível em: https://journals.univ-msila.dz/index.php/AHJ/article/view/9342. Acesso em: 13 may. 2026.