Carroll, J.E., author
Cambridge University Press, 1990
Buku Teks
Romanowitz, H. Alex, author
John Wiley & Sons, 1962
Buku Teks
Runyan, W.R., author
McGraw-Hill, 1998
Buku Teks
"California: Raytheon, 1983"
Buku Teks
Gannon, Michael, author
Prentice-Hall, 1982
Buku Referensi