Johnson, David E., author
Prentice-Hall, 1982
Buku Teks
Terrell, David L., author
Butterworth-Heinemann, 1996
Buku Teks
Coughlin, Robert F., author
Prentice-Hall, 2001
Buku Teks
Wait, John V., author
McGraw-Hill, 1992.
Buku Teks
Jacob, J. Michael, author
Reston Publishing, 1982
Buku Teks