Hopper, Andrew
Addison-Wesley, 1986
Buku Teks
Keiser, Gerd, editor
McGraw-Hill , 2002
Multimedia
Keiser, Gerd E.
GTE, [Date of publication not identified]
Buku Teks
Tangney, Brendan
Prentice-Hall, 1988
Buku Teks
Forouzan, Behrouz A.
McGraw-Hill , 2003
Buku Teks