Abd Hussin  Abd Hussin, Sayyaf, AND 		Abbad Al-Jbouri, Mohmood.
" The four religious schools and their role in intellectual life in the Mamluk era  700 - 850 AH / 1300 - 1446 AD" <em>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</em> [Online], Volume 25 Number 11 (26 March 2019)