Link, W. (2007). How to master skills for the TOEFL IBT listening: Intermediate. Thành phố Hồ Chí Minh: Tổng hợp Thành phố Hồ Chí Minh.
শিকাগো স্টাইলে সাইটেশনLink, Will. How to Master Skills for the TOEFL IBT Listening: Intermediate. Thành phố Hồ Chí Minh: Tổng hợp Thành phố Hồ Chí Minh, 2007.
এমএলএ সাইটেশনLink, Will. How to Master Skills for the TOEFL IBT Listening: Intermediate. Thành phố Hồ Chí Minh: Tổng hợp Thành phố Hồ Chí Minh, 2007.
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