Pearlson, Keri E., author
John Wiley & Sons, 2009
Buku Teks
McLeod, Raymond, author
Pearson Prentice Hall, 2004
Buku Teks
McLeod, Raymond, author
Prentice Hall International, 1995
Buku Teks
Kroenke, David M., 1946-, author
McGraw-Hill, c1992
Buku Teks
Lucas, Henry C., author
McGraw-HIll, 1990
Buku Teks