Yousif، M. M.، و Ghubin، B. A. (2010). An Empirical Study Of Pragmatic Failure in Performing Perlocutionary Acts by Non - Native Speakers. مجلة الآداب، ع93 ، 156 - 184. مسترجع من http://search.mandumah.com/Record/667590
Yousif، Mukhalad Malik، و Baidaa Abbas Ghubin. "An Empirical Study Of Pragmatic Failure in Performing Perlocutionary Acts By Non - Native Speakers." مجلة الآداب ع93 (2010): 156 - 184. مسترجع من http://search.mandumah.com/Record/667590