Zells, Lois, author
QED Information Sciences, 1990
Buku Referensi
Turban, Efraim, 1930-, author
Prentice-Hall, 1995
Buku Teks
O`Brien, James A., 1936-, author
Irwin, 1997
Buku Teks
Olson, David Louis, author
McGraw-Hill , 2004
Multimedia
Adrian Payne, author
Cambridge University Press, 2013
eBooks