Weber, Ron, author
Prentice-Hall, 1999
Buku Teks
Edwards, Chris, author
Andi, 2001
Buku Teks
edited by Ralph H. Sprague and Barbara C. McNurlin
Prentice-Hall International, 1993
Buku Teks
Olson, David Louis, author
MCGraw-Hill , 2004
Multimedia
Olson, David Louis, author
McGaw-Hill, 2004
Multimedia