Elssalih، E. A.، و Altayeb، G. N. A. (2022). The Challenge of School Improvement Policy in Secondary Schools of East Darfur Estate in Sudan. مجلة ريحان للنشر العلمي، ع22 ، 88 - 111. مسترجع من http://search.mandumah.com/Record/1270044
Elssalih، Elssadig Ali، و Gameela Nour Aldiem Altayeb. "The Challenge of School Improvement Policy in Secondary Schools of East Darfur Estate in Sudan." مجلة ريحان للنشر العلمي ع22 (2022): 88 - 111. مسترجع من http://search.mandumah.com/Record/1270044