Mohammad، A. A. (2009). The Effects of Four Types of Computerized and Non-computerized Feedback on University Students' Learning of English Adjectives. مجلة كلية التربية، ع33, ج1 ، 23 - 48. مسترجع من http://search.mandumah.com/Record/692395
Mohammad، Azmi Adel. "The Effects of Four Types of Computerized and Non-computerized Feedback On University Students' Learning of English Adjectives." مجلة كلية التربية ع33, ج1 (2009): 23 - 48. مسترجع من http://search.mandumah.com/Record/692395