IBRAHIM, Hossam El Din Elsaid Mohammad; ALSHAILI, Saud bin Sulayem bin Saad. The problems that face school principals in evaluating their job performance in Al Dhahirah Governorate in the Sultanate of Oman. Ibn Khaldoun Journal for Studies and Researches, فلسطين, v. 2, n. 1, 2023. DOI: 10.56989/benkj.v2i1.209. Disponível em: https://benkjournal.com/index.php/benkj/article/view/209. Acesso em: 19 apr. 2026.