Eisenberg, Melvin A., author
The Foundation Press, 1987
Buku Teks
J. Dennis Hynes
West Publshing Co, 1997
Buku Teks
Reuschlein, Harold Gill, author
St. Paul Minn, 1990
Buku Teks
Hynes, J. Dennis, author
Michie , 1996
Buku Teks
Kleinberger, Daniel S.
Little, Brown and Company, 1995
Buku Teks