Byrd, Joseph S.
Prentice Hall International, 1993
Buku Teks
McGlynn, Daniel R.
John Wiley & Sons, 1982
Buku Teks
Snover, Stephen L.
Prentice-Hall, 1982
Buku Teks
edited by David J. Deutsch
McGraw-Hill, 1987
Buku Teks
Gear, Charles William, 1935-
McGraw-Hill, 1985
Buku Teks