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