Sharpe, P. J. (2006). Barron's toefl IBT internet - based test 2006 - 2007 - 2008: How to prepare for the toefl IBT : Test of english as a foreign language internet - based test (12th edition.). Tp. HCM: Trẻ.
シカゴスタイル引用形Sharpe, Pamela J. Barron's Toefl IBT Internet - Based Test 2006 - 2007 - 2008: How to Prepare for the Toefl IBT : Test of English As a Foreign Language Internet - Based Test. 12th edition. Tp. HCM: Trẻ, 2006.
MLA引用形式Sharpe, Pamela J. Barron's Toefl IBT Internet - Based Test 2006 - 2007 - 2008: How to Prepare for the Toefl IBT : Test of English As a Foreign Language Internet - Based Test. 12th edition. Tp. HCM: Trẻ, 2006.
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