Berenson, Mark L., author
Pearson, 2015
Buku Teks
Berencon, Mark L., author
Prentice-Hall, 1992
Buku Teks
Dubois, Edward N.
McGraw-Hill, 1979
Buku Teks
Pelosi, Marilyn K.
Wiley , 2002
Multimedia
Anderson, David R., author
West Publishing, 1981
Buku Teks