Neungyule Education; Nguyễn Thành Yến. (2009). New TOEIC 4n4, 520 level: Four weeks, for weakness. Tp. Hồ Chí Minh: Tổng hợp TP.HCM.
استشهاد بنمط شيكاغوNeungyule Education; Nguyễn Thành Yến. New TOEIC 4n4, 520 Level: Four Weeks, for Weakness. Tp. Hồ Chí Minh: Tổng hợp TP.HCM, 2009.
MLA استشهادNeungyule Education; Nguyễn Thành Yến. New TOEIC 4n4, 520 Level: Four Weeks, for Weakness. Tp. Hồ Chí Minh: Tổng hợp TP.HCM, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.