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