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دليل المستخدم
Al Essa، A. A. F.، و King، E. (2003). EDUCATION IN THE 21sT CENTURY IN SAUDI ARABIA: A STUDY OF COOPERATIVE TRAINING IN THE BURAYDAH SECONDARY COMMERCIAL SCHOOL (رسالة دكتوراه غير منشورة). Denver University، دنفر. مسترجع من http://search.mandumah.com/Record/613624
Al Essa، Abd Alkarim F.، و Edith King. "EDUCATION IN THE 21sT CENTURY IN SAUDI ARABIA: A STUDY OF COOPERATIVE TRAINING IN THE BURAYDAH SECONDARY COMMERCIAL SCHOOL" رسالة دكتوراه. Denver University، دنفر، 2003. مسترجع من http://search.mandumah.com/Record/613624