Walsh, Myles E.
John Wiley & Sons, 1981
Buku Teks
Malvino, Albert Paul
Erlangga, 1994
Buku Teks
Johnson, David E.
Prentice-Hall, 1979
Buku Teks
edited by V.K. Prasanna Kumar
Academic Press, 1991
Buku Teks
Parsons, June
Cengage Learning, 2013
Buku Teks