Gaya APA

.d., P, J. (2012). Barron`s The Trusted Name In Test Prep Toefl iBT (13th Edition). Tanggerang Selatan: BINARUPA AKSARA.

Gaya MLA

.d., Pamela, J.Sharpe,Ph. "Barron`s The Trusted Name In Test Prep Toefl iBT". 13th Edition Tanggerang Selatan: BINARUPA AKSARA, 2012. Text.