Zuckerman, Edward L., author
Guilford Press , 2006
Buku Teks
Sigband, Norman B.
Harper & Brothers Publ , 1960
Buku Teks
Netzley, Michael, author
Prentice-Hall, 2001
Buku Teks
Davis, Ken
Charles E. Merrill Publishing Company, 1983
Buku Teks
Lesikar, Raymond V. (Raymond Vincent), author
Dow Jones-Irwin , 1974
Buku Teks