Defensive fortifications and army organization in the first Abbasid era (132-247 AH / 749-861 AD) Baghdad as a model. Journal of the College of Basic Education, [S. l.], v. 1, n. عدد خاص, p. 842–861, 2024. DOI: 10.35950/cbej.v1iعدد خاص.11762. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/11762.. Acesso em: 14 may. 2025.