Shawawreh, F. “The Abbasi’s View Toward Reign 132-247 A.H./749-861 A.D. A Study for the Policy of the First Abbasid Era Caliphs in Stabilizing the State’s Pillars and Legitimacy”. Arts and Social Sciences Series, vol. 2, no. 4, Feb. 2024, pp. 437-6, doi:10.59759/art.v2i4.412.