LinguaForum, & Lê, H. L. (2011). TOEFL IBT I-speaking (New edition.). T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt.
শিকাগো স্টাইলে সাইটেশনLinguaForum, এবং Huy Lâm Lê. TOEFL IBT I-speaking. New edition. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2011.
এমএলএ সাইটেশনLinguaForum, এবং Huy Lâm Lê. TOEFL IBT I-speaking. New edition. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2011.
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