TAHA HASAN AL-NASSIR, S.; YOUSIF IBRAHEEM, F. The Role of the Abbasid Caliphs in Fortification of Coastal Cities with Byzantine State in the First Abbasid Era (132-232 AH/750-847AD ). اداب الرافدین, [S. l.], v. 50, n. 82, p. 511–532, 2020. DOI: 10.33899/radab.2020.166391. Disponível em: https://radab.uomosul.edu.iq/index.php/radab/article/view/34172. Acesso em: 10 dec. 2025.