Linguaforum. (2010). A1 TOEFL IBT: Speaking. Tp.Hồ Chí Minh: Trẻ;Kelt.
Chicago Style CitationLinguaforum. A1 TOEFL IBT: Speaking. Tp.Hồ Chí Minh: Trẻ;Kelt, 2010.
Cita MLALinguaforum. A1 TOEFL IBT: Speaking. Tp.Hồ Chí Minh: Trẻ;Kelt, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.