<strong>ملخص الدراسة:</strong>

<strong>توثيق المرجعي (APA)</strong>

الخضري, نجلاء هشام محمد (2017). the effectiveness of decision - making among secondary school principals in gaza covernorates and its relationship to crisis management. الجامعة الإسلامية - غزة. 17465

ملخص الدراسة:

توثيق المرجعي (APA)

الخضري, نجلاء هشام محمد (2017). the effectiveness of decision – making among secondary school principals in gaza covernorates and its relationship to crisis management. الجامعة الإسلامية – غزة. 17465