Taylor, Benjamin J.
Prentice-Hall, 1987
Buku Teks
Merrifield, Leroy S.
The Michie Company, 1994
Buku Teks
Leslie, Douglas L., author
Little, Brown and Company, 1981
Buku Teks
Leslie, Douglas L., author
Little, Brown, 1979
Buku Teks
Harper, Michael C
Little, Brown and Company, 1996
Buku Teks