Fry, T. F., author
Butterworth, 1981
Buku Teks SO
Hartley, Michael G.
McGraw-Hill, 1978
Buku Teks
Silverman, Gordon, author
McGraw-Hill, 1988
Buku Teks
Price, Wilson T., author
Rinehart Press, 1968
Buku Teks
Organick, Elliott I., author
Academic Press, 1978
Buku Teks