Curran, Desmond, author
Churchill, Livingtone, 1972
Buku Teks
Rowe, Clarence J.
W. C. Brown Co, 1975
Buku Teks
Noyes, Arthur P.
WB. Saunders, 1964
Buku Teks
Andreasen, Nancy C.
American Psychiatric Press, 1995
Buku Teks
Olumoroti, Olumuyiwa John, author
Elsevier, 2005
Buku Teks