(2004). TOEFL: Test of english as a foregin language 2002- 2003. An office guide form ETS educational testing servies. Thành phố Hồ Chí Minh: Trẻ.
استشهاد بنمط شيكاغوTOEFL: Test of English As a Foregin Language 2002- 2003. An Office Guide Form ETS Educational Testing Servies. Thành phố Hồ Chí Minh: Trẻ, 2004.
MLA استشهادTOEFL: Test of English As a Foregin Language 2002- 2003. An Office Guide Form ETS Educational Testing Servies. Thành phố Hồ Chí Minh: Trẻ, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.