Lurch, E. Norman
John Wiley & Sons, 1971
Buku Teks
Ryder, John D. (John Douglas)
McGraw-Hill, [date of publication not identified]
Buku Teks
The Institute of Electrical and Electronics Engineers, 2008
Majalah, Jurnal, Buletin
Bapat, Y.N.
Tata McGraw-Hill, 1978
Buku Teks
Ginsberg, Gerald L.
McGraw-Hill, 1990
Buku Teks