مرعي س. ., & فحصة ك. . . (2021). Titles of the Abbasid caliphs in the first round (132-232 AH / 750-847 CE). Latakia University Journal - Arts and Humanities Sciences Series, 43(1). Retrieved from https://journal.latakia-univ.edu.sy/index.php/humlitr/article/view/10383