Lê, T. T., & Lê, N. P. A. (2008). 30 days to the TOEIC test: Test of English for international communication. Audio CD. T.P. Hồ Chí Minh: Trẻ.
Παραπομπή Chicago StyleLê, Thành Tâm, και Ngọc Phương Anh Lê. 30 Days to the TOEIC Test: Test of English for International Communication. Audio CD. T.P. Hồ Chí Minh: Trẻ, 2008.
Παραπομπή MLALê, Thành Tâm, και Ngọc Phương Anh Lê. 30 Days to the TOEIC Test: Test of English for International Communication. Audio CD. T.P. Hồ Chí Minh: Trẻ, 2008.
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