(2013). Collins skills for the TOEIC® test: Speaking and writing. Nxb. Tổng hợp Tp.HCM : Nhân Trí Việt.
শিকাগো স্টাইলে সাইটেশনCollins Skills for the TOEIC® Test: Speaking and Writing. Nxb. Tổng hợp Tp.HCM : Nhân Trí Việt, 2013.
এমএলএ সাইটেশনCollins Skills for the TOEIC® Test: Speaking and Writing. Nxb. Tổng hợp Tp.HCM : Nhân Trí Việt, 2013.
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