Gaya APA

all, J., H., E. (2009). GMAT 10 PRACTICE TESTS (2009 Edition). USA: Mc Graw-Hill.

Gaya MLA

all, James, Hasik,, Et. "GMAT 10 PRACTICE TESTS". 2009 Edition USA: Mc Graw-Hill, 2009. Buku Inti.