Howaida Saleh Abdullah Salem. “The Degree of Practicing Leadership Skills Among Principals of Private Schools in Aden Governorate”. Journal of the Faculties of Education - University of Aden 20, no. 1 (June 30, 2026): 59–73. Accessed August 25, 2026. https://jef.adenuniv.net/index.php/jef/article/view/196.