(2008). TOEFL IBT activator speaking: Advanced. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh.
Chicago Style CitationTOEFL IBT Activator Speaking: Advanced. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh, 2008.
Cita MLATOEFL IBT Activator Speaking: Advanced. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.