Al Karni، A. A.، Briggs، A.، و James، K. (2000). Challenges which May Face Secondary Schools Head Teachers' Ability, in the City of Tabouk, to Lead their Schools Professionally (رسالة ماجستير غير منشورة). Newcastle University، نيوكاسل أبون تاين. مسترجع من http://search.mandumah.com/Record/601604
Al Karni، Abd Allah، Ann Briggs، و Kevin James. "Challenges Which May Face Secondary Schools Head Teachers' Ability, in the City of Tabouk, to Lead Their Schools Professionally" رسالة ماجستير. Newcastle University، نيوكاسل أبون تاين، 2000. مسترجع من http://search.mandumah.com/Record/601604