Lamya’a Ali Suliman Al -Zamki. “A Proposed Training Program to Develop the Skills of Secondary School Principals in Aden Governorate in Light of Transformational Leadership and Self-Management”. Journal of the Faculties of Education - University of Aden, vol. 20, no. 1, June 2026, pp. 275-88, doi:10.47372/jef.(2026)20.1.211.