Gaya APA

Sharpe, P, J. (2007). Pass key to the TOEFL iBT: test of english as a foreign language internet - based test. Sixth Edition (Ed.ke-6, Cet.1). Jakarta: .

Gaya MLA

Sharpe, Pamela, J.. "Pass key to the TOEFL iBT: test of english as a foreign language internet - based test. Sixth Edition". Ed.ke-6, Cet.1 Jakarta: , 2007. Textbook.