Anastasi, Anne
Prenhallindo, 1998
Buku Teks
Brown, Frederick G.
Dryden Press, 1970
Buku Teks
Swerdlik, Mark E.
Mayfield Publishing Company, 1999
Buku Teks
Groth-Marnat, Gary
John Wiley &Sons, Inc, 2004
Buku Teks
Anastasi, Anne
Macmillan, 1988
Buku Teks