Shalbag، R. A.، و Mugadam، A. A. H. (2013). A CASE STUDY ON LIBYAN LEARNERS PROBLEMS IN UNDERSTANDING AND USING FORMAL VOCABULARY IN ACADEMIC WRITING. فكر وإبداع، ج79 ، 73 - 82. مسترجع من http://search.mandumah.com/Record/666314
Shalbag، Ramadan Ahmed، و Abd Alrahim Hamid Mugadam. "A CASE STUDY ON LIBYAN LEARNERS PROBLEMS IN UNDERSTANDING AND USING FORMAL VOCABULARY IN ACADEMIC WRITING." فكر وإبداع ج79 (2013): 73 - 82. مسترجع من http://search.mandumah.com/Record/666314