Gaya APA
Sharpe, P, J. (2007).
Barron's toefl IBT (Internet-Based test) with 10 audio CDs (12).
Jakarta:
Binarupa Aksara.
Gaya MLA
Sharpe, Pamela, J..
"Barron's toefl IBT (Internet-Based test) with 10 audio CDs".
12
Jakarta:
Binarupa Aksara,
2007.
Text.