Hassan، S. H. (2010). A Study Of Iraqi EFL Learners Errors in The Use Of Modals and Semi - Modals. مجلة الآداب، ع93 ، 1 - 14. مسترجع من http://search.mandumah.com/Record/667560
Hassan، Sawsan Hazim. "A Study Of Iraqi EFL Learners Errors in The Use Of Modals and Semi - Modals." مجلة الآداب ع93 (2010): 1 - 14. مسترجع من http://search.mandumah.com/Record/667560