Harper, Michael C
Little, Brown and Company, 1996
Buku Teks
Merrifield, Leroy S., author
Michie, 1994
Buku Teks
Willborn, Steven L.
The Michie Company, 1993
Buku Teks
Leslie, Douglas L., author
Little, Brown and Company, 1981
Buku Teks
Leslie, Douglas L., author
Little, Brown, 1979
Buku Teks