Hynes, J. Dennis, author
Michie , 1996
Buku Teks
Soderquist, Larry D.
The Michie Company, 1991
Buku Teks
Braucher, Robert, author
Foundation Press, 1958
Buku Teks
J. Dennis Hynes
West Publshing Co, 1997
Buku Teks
Reuschlein, Harold Gill, author
St. Paul Minn, 1990
Buku Teks