Dafallah، S. E. A.، Osman، A. M. A.، Al Hafian، M. H. M.، و Noor، T. M. H. M. (2021). Investigating the Difficulties Encountered Secondary School Students' in Using Phrasal Verbs: A Case Study of Secondary School Students Khartoum State, East Nile Locality. مجلة الدراسات اللغوية والأدبية، مج22, ع3 ، 191 - 197. مسترجع من http://search.mandumah.com/Record/1264826
Dafallah، Shekh Eldin Abd-Allah، Ahmed Mukhtar Almrdi Osman، Muntaair Hassan Mubarak Al Hafian، و Tohami Mohammed Hassan Mohammed Noor. "Investigating the Difficulties Encountered Secondary School Students' in Using Phrasal Verbs: A Case Study of Secondary School Students Khartoum State, East Nile Locality." مجلة الدراسات اللغوية والأدبية مج22, ع3 (2021): 191 - 197. مسترجع من http://search.mandumah.com/Record/1264826