Fry, T. F., author
Butterworth, 1981
Buku Teks
Hartley, Michael G.
McGraw-Hill, 1978
Buku Teks
Bartee, Thomas C., author
McGraw-Hill, 1983
Buku Teks
Townsend, Ralph, author
Butterworth, 1982
Buku Teks
Bartee, Thomas C., author
McGraw-Hill, 1985
Buku Teks