Ibrahim، O. Y.، و Elhassan، I. B. M. (2015). An Investigation into the Sources of English Language Speaking Anxiety from the University Students' Perspective. مجلة العلوم الإنسانية، مج16, ع1 ، 193 - 210. مسترجع من http://search.mandumah.com/Record/692744
Ibrahim، Osama Yousif، و Ishraga Bashir Mohammed Elhassan. "An Investigation Into the Sources of English Language Speaking Anxiety From the University Students' Perspective." مجلة العلوم الإنسانية مج16, ع1 (2015): 193 - 210. مسترجع من http://search.mandumah.com/Record/692744