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