user22, user2, AND 		Mirza, Dr.. Ahmed.
" Salah al-Din strategy in achieving his victories 570-582 / 1174-1186m) historical analysis" <em>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</em> [Online], Volume 23 Number 7 (7 April 2019)