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دليل المستخدم
Al Mazyed، M. I.، و Sylwester، R. (1975). SCIENCE EDUCATION IN PUBLIC SECONDARY SCHOOLS IN SAUDI ARABIA AS PERCEIVED BY SCIENCE TEACHERS AND SCIENCE STUDENTS (رسالة دكتوراه غير منشورة). University of Oregon، يوجين. مسترجع من http://search.mandumah.com/Record/619293
Al Mazyed، Mazyed Ibrahim، و Robert Sylwester. "SCIENCE EDUCATION IN PUBLIC SECONDARY SCHOOLS IN SAUDI ARABIA AS PERCEIVED BY SCIENCE TEACHERS AND SCIENCE STUDENTS" رسالة دكتوراه. University of Oregon، يوجين، 1975. مسترجع من http://search.mandumah.com/Record/619293