Abdul Aziz, Mustafa, AND 		Said, Omar.
" Economic Systems of the Mameluke States and the Mamluk Tower (Al-Garaksa) (648-923 / 1250-1517) (Comparative Study)" <em>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</em> [Online], Volume 26 Number 7 (16 October 2019)