Gaya APA

JAFFE, E, D., HILBERT, S. (1991). How to prepare for the graduate management admission test : (9th ed.). New York: Barrons Educational Series.

Gaya MLA

JAFFE, Eugene, D.., HILBERT, Stephen. "How to prepare for the graduate management admission test :". 9th ed. New York: Barrons Educational Series, 1991. Buku.