Mhanna, O. “The Conflict Between the Ayyubid and Romanians Seljuks in the Levant (1180-1219/ 576-616)”. Tishreen University Journal- Arts and Humanities Sciences Series, vol. 37, no. 6, Sept. 2016, https://journal.tishreen.edu.sy/index.php/humlitr/article/view/2006.