Al-Hazemi، H. A. (1997). Vocabulary Proficiency Among Arab Male and Female learners of English: An Investigation of Vocabulary Size. مجلة كلية التربية، ع21, ج1 ، 1 - 12. مسترجع من http://search.mandumah.com/Record/668823
Al-Hazemi، Hassan A. "Vocabulary Proficiency Among Arab Male and Female Learners of English: An Investigation of Vocabulary Size." مجلة كلية التربية ع21, ج1 (1997): 1 - 12. مسترجع من http://search.mandumah.com/Record/668823