khara, djihad. “Personal Styles and Their Relationship With Types of Leadership for Hospital, Directors (field Study in Oum El Bouaghi and Constantine City)”. Milev Journal of Research and Studies 2, no. 2 (December 31, 2016): 241–258. Accessed September 1, 2024. https://jiamcs.centre-univ-mila.dz/index.php/mjrs/article/view/1232.