Sharpe, P. J., & Pamela J. Sharpe. (2010). Toefl iBT: Internet based test . (12th edition.). Hồ Chí Minh: NXB trẻ.
シカゴスタイル引用形Sharpe, Pamela J., , Pamela J. Sharpe. Toefl IBT: Internet Based Test . 12th edition. Hồ Chí Minh: NXB trẻ, 2010.
MLA引用形式Sharpe, Pamela J., , Pamela J. Sharpe. Toefl IBT: Internet Based Test . 12th edition. Hồ Chí Minh: NXB trẻ, 2010.
警告: この引用は必ずしも正確ではありません.