Mahfoud, Bashir Ghit. "Examining the Content & Face Validity of English Placement Test at the Technical College of Civil Aviation & Meteorology, (TCCAM) Tripoli, Libya.". الجامعي, no. 33 (1): 19-5. تاريخ الوصول يونيو 13, 2026. https://mail.aljameai.org.ly/index.php/aljameai/article/view/802.