Abdelaziz Saleh Al-Sahli. 2020. “The Impact of Managers’ Administrative Skills on the Performance of Hospitals Staff Applied Study on King Fahad Hospital in Al-Madina Al-Munawara”. International Journal of Advanced Science and Technology 29 (06), 8952 -84. http://sersc.org/journals/index.php/IJAST/article/view/31027.