Masadeh، T. S. Y.، و Hussein، R. F. (2006). Jordanian University Students' English for Specific Purposes Needs As Perceived by Employees, Faculty Members and Employers (رسالة دكتوراه غير منشورة). جامعة عمان العربية، عمان. مسترجع من http://search.mandumah.com/Record/635206
Masadeh، Thouqan Saleem Yaqoub، و Riyad Fayez Hussein. "Jordanian University Students' English for Specific Purposes Needs As Perceived By Employees, Faculty Members and Employers" رسالة دكتوراه. جامعة عمان العربية، عمان، 2006. مسترجع من http://search.mandumah.com/Record/635206