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دليل المستخدم
Abd Al Qader، M. Q. A.، و Abd Alsalam، F. M. A. (2013). Difficulties in Producing English Consonant Sounds Experienced by Sudanese Tertiary Level Learners: ( A Case Study of First & Second Year Students of Three Faculties of Education) (رسالة ماجستير غير منشورة). جامعة أم درمان الاسلامية، ام درمان. مسترجع من http://search.mandumah.com/Record/911591
Abd Al Qader، Mohammed Qasm Allah، و Farouk Mohammed Ahmed Abd Alsalam. "Difficulties in Producing English Consonant Sounds Experienced By Sudanese Tertiary Level Learners: ( A Case Study of First & Second Year Students of Three Faculties of Education)" رسالة ماجستير. جامعة أم درمان الاسلامية، ام درمان، 2013. مسترجع من http://search.mandumah.com/Record/911591