(2009). How to master skills for the TOEFL iBT speaking: Basic. Tp. Hồ Chí Minh: Tổng hợp.
استشهاد بنمط شيكاغوHow to Master Skills for the TOEFL IBT Speaking: Basic. Tp. Hồ Chí Minh: Tổng hợp, 2009.
MLA استشهادHow to Master Skills for the TOEFL IBT Speaking: Basic. Tp. Hồ Chí Minh: Tổng hợp, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.