Balje, O.E.
John Wiley & Sons, 1981
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 1990
Buku Teks
Sedra, Adel S., author
Pitman, , 1978
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 1990
Buku Teks
Hill, Fredrick J., author
John Wiley & Sons, 1981
Buku Teks