Al-Zayde, D. B. A. ., and H. . Raid Anagreh. “Leadership Styles of Faculty Members at Faculty of Science at Taibah University and Its Relationship to Students’ Motivation towards Learning Science”. Dirasat: Educational Sciences, vol. 47, no. 2, June 2020, pp. 19-34, http://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2268.