Sharpe, P. J. (2010). TOEFL iBT: Internet -based text (13th ed.). Barron's Educational Series, Inc ; Galgotia publications Pvt. Ltd.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSharpe, Pamela J. TOEFL IBT: Internet -based Text. 13th ed. Hauppauge, N.Y. : New Delhi: Barron's Educational Series, Inc ; Galgotia publications Pvt. Ltd, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSharpe, Pamela J. TOEFL IBT: Internet -based Text. 13th ed. Barron's Educational Series, Inc ; Galgotia publications Pvt. Ltd, 2010.
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