Sharpe, P. J. (2007). 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.
Dyfyniad Arddull ChicagoSharpe, 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, 2007.
Dyfyniad MLASharpe, 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, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.