Link, W., Poirier, S., Putlack, M. A., & Lê, H. L. (2008). How to master skills for the TOEFL IBT Speaking intermediate. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh.
शिकागो स्टाइल उद्धरणLink, Will, Stephen Poirier, Michael A. Putlack, और Huy Lâm Lê. How to Master Skills for the TOEFL IBT Speaking Intermediate. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh, 2008.
एमएलए उद्धरणLink, Will, Stephen Poirier, Michael A. Putlack, और Huy Lâm Lê. How to Master Skills for the TOEFL IBT Speaking Intermediate. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh, 2008.
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