Sharpe, P. J. (2007). Barron's TOEFL iBT internet - based test 2006 - 2007 - 2008 (12th ed.). Tp. Hồ Chí Minh: Trẻ.
Style de citation ChicagoSharpe, Pamela J. Barron's TOEFL IBT Internet - Based Test 2006 - 2007 - 2008. 12th ed. Tp. Hồ Chí Minh: Trẻ, 2007.
Style de citation MLASharpe, Pamela J. Barron's TOEFL IBT Internet - Based Test 2006 - 2007 - 2008. 12th ed. Tp. Hồ Chí Minh: Trẻ, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.