Nietzel, Michael T.
Introduction to Clinical Psychology
Prentice-Hall, 1998
 Buku Teks
Trull, Timothy J., 1960-
Clinical psychology
Thomson , 2005
 Buku Teks
Nietzel, Michael T.
Introduction to clinical psychology
Prentice-Hall, 1987
 Buku Teks
Nietzel, Michael T.
Introduction to clinical psychology
Prentice-Hall, 1998
 Buku Teks
Journal of Consulting and Clinical Psychology
American Psychological Assosiation, 2007
 Majalah, Jurnal, Buletin