Schultz, Judith M., author
Little, Brown, 1986
Buku Teks
Higgins, Ray, author
Whurr , 1999
Buku Teks
Wilson, Holly Skodol, author
Addison-Wesley, 1983
Buku Teks
Wilson, Holly Skodol, author
Addison-Wesley, 1979
Buku Teks
Keltner, Norman L., author
Mosby, 2002
Buku Teks