El Tayeb، G. E. H. M. M. (2016). Difficulties And Problems That Face Sudanese EFL Learners Students In Learning English Collocations. مجلة العلوم الإنسانية، مج17, ع2 ، 173 - 190. مسترجع من http://search.mandumah.com/Record/755925
El Tayeb، Gamal Eldin Hussien Mohammed Mohammed. "Difficulties And Problems That Face Sudanese EFL Learners Students In Learning English Collocations." مجلة العلوم الإنسانية مج17, ع2 (2016): 173 - 190. مسترجع من http://search.mandumah.com/Record/755925