Harvard Business School Press, 2004
Buku Teks
Dumont, Raymond A., author
Little, Brown, 1985
Buku Teks
Archer, Robert M., author
Prentice-Hall, 1971
Buku Teks
Siswanto Sutojo, author
Damar Mulia Pustaka, 2003
Buku Teks
LoCicero, Joe, author
Adams Media, 2007
Buku Teks