Forouzan, Behrouz A.
McGraw-Hill, 2002
Buku Teks
FitzGerald, Jerry
Wiley, 1996
Buku Teks
Pardoe, T. D.
McGraw-Hill, 1992
Buku Referensi
Sherman, Kenneth
Reston Publishing company, 1981
Buku Teks
Stalling, William
Maxwell Macmillan International, 1991
Buku Teks