Sharpe, P. J., & Pamela J.Sharpe. (2006). Barron's practice exercises for the TOEFL: Test of english as a foreign language. Tp. Hồ Chí Minh: Trẻ.
शिकागो स्टाइल उद्धरणSharpe, Pamela J., और Pamela J.Sharpe. Barron's Practice Exercises for the TOEFL: Test of English As a Foreign Language. Tp. Hồ Chí Minh: Trẻ, 2006.
एमएलए उद्धरणSharpe, Pamela J., और Pamela J.Sharpe. Barron's Practice Exercises for the TOEFL: Test of English As a Foreign Language. Tp. Hồ Chí Minh: Trẻ, 2006.
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