Jaffe, Eugene D.
How to prepare for the graduate management admission test, GMAT
Barron's, 1994
 Buku Teks
Newell, Michael W.
Preparing for the project management professional (PMP) certification exam
American Management Association, 2005
 eBooks
Barron's how to prepare for the national council licensure examination for reggistered nurses nclex- RN
by Luzviminda Casapao [and others]
Barron's Educational Series, 1983
 Buku Teks
Pierce, Douglas
Mcgraw-Hill’s conquering GMAT verbal and writing
McGraw-Hill, 2012
 Buku Teks
Murray, Rowena
How to survive your viva : defending a thesis in an oral examination
Open University Press, 2003
 Buku Teks