Newhouse, Bertha S.
How to prepare for the graduate management admission test / Bertha S. Newhouse
McGraw-Hill, 1983
 Buku Teks
How to prepare for the GRE, graduate record examination : general test
by Samuel C. Brownstein [and others]
Barron's, 1994
 Buku Teks
Sharpe, Pamela J.
How to prepare for the TOEFL (Test Of English as a Foreign Language)
Barron's, 2001
 Buku Teks
How to pass graduate record examination advanced test engineering
Cowles Education Corporation, 1967
 Buku Teks
Sharpe, Pamela J.
Barron's how to prepare for the toefl: test of English as a foreign Language. Cassette 1. 5th ed.
Barron's Educational Series,
 Multimedia