ملخص الدراسة:

توثيق المرجعي (APA)

صيام, رسلان ابراهيم محمد (2017). sffectiveness of the leadership for the future program and its relationship to change leadership , among the united nations for relief and works agencys ( unrwa ) school principals in gaza governorates. الجامعة الإسلامية - غزة. 17400