Al Fadda، H. A. A.، و Heerman، C. E. (2004). LITERATURE SYNTHESIS AND INVENTORY OF READING METHODS USED BY KANSAS MIDDLE SCHOOLS FOR CONTENT-BASED READING APPROACHES (COBRAS) (رسالة دكتوراه غير منشورة). Kansas State University، مانهاتن. مسترجع من http://search.mandumah.com/Record/615467
Al Fadda، Hind Abd Alaziz، و Charles E. Heerman. "LITERATURE SYNTHESIS AND INVENTORY OF READING METHODS USED BY KANSAS MIDDLE SCHOOLS FOR CONTENT-BASED READING APPROACHES (COBRAS)" رسالة دكتوراه. Kansas State University، مانهاتن، 2004. مسترجع من http://search.mandumah.com/Record/615467