American Psychiatric Press, 1984
Buku Referensi
Andersen, Dines
Copenhagen: Gyldendalske Boghandel, 1907
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