Rothberg, Robert R.
The Free Press, 1981
Buku Teks
Grinblatt, Mark
McGraw-Hill/Irwin, 2002
Buku Teks
Johnson, Gerry
Prentice-Hall, 1988
Buku Teks
Tribe, John
International Thomson Business Press, 1997
Buku Teks
Tribe, John
International Thomson Business Press, 1997
Buku Teks