Gaya APA

Jaffe, E, D., Hilbert, S. (2005). How to prepare for the GMAT (13th.ed.). Jakarta: Penerbit Binarupa Aksara.

Gaya MLA

Jaffe, Eugene, D.., Hilbert, Stephen. "How to prepare for the GMAT". 13th.ed. Jakarta: Penerbit Binarupa Aksara, 2005. Teks.