Hodges, David A., author
Erlangga, 1987
Buku Teks
Stanley, William D., author
Merrill Pub. Co,, 1994
Buku Teks
"California: Raytheon, 1983"
Buku Teks
Lenk, John D., author
Reston , 1978
Buku Referensi
Bogart, Theodore F., author
John Wiley & Sons, 1983
Buku Teks