Callister, William D., Jr., 1940-, author
John Wiley & Sons, 2000
Buku Teks
Askeland, Donald R.
Chapman & Hall, 1990
Buku Teks
Henkel, Daniel P., author
McGraw-Hill , 2002
Buku Teks
Ashby, M. F. (Michael F.), author
Pergamon Press, 1986
Buku Teks
Mamlouk, Michael S., author
Pearson Prentice Hall, 2006
Buku Teks