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