Stopford, John Morton
Basic Books, 1972
Buku Teks
Ball, Donald A.
Irwin/McGraw-Hill, 2002
Multimedia
Vernon, Raymond
Harvard University Press, 1972
Buku Teks
Sanyal, Rajib N
Prentice-Hall, 2001
Buku Teks
Choi, Frederick D.S., 1942-
Prentice-Hall, 2002
Buku Teks