Ibrahim، S. A. (2004). Understanding Perfect Aspect in English and Arabic: Implications for Arab Learners. المجلة الجامعة، ع6 ، 85 - 93. مسترجع من http://search.mandumah.com/Record/1262880
Ibrahim، Saad A. "Understanding Perfect Aspect in English and Arabic: Implications for Arab Learners." المجلة الجامعة ع6 (2004): 85 - 93. مسترجع من http://search.mandumah.com/Record/1262880