Angell, David, author
Addison-Wesley, 1995
Buku Teks
Ellsworth, Jill H., author
Wiley, 1994
Buku Teks
Emery, Vince
Coriolis Group Books, 1995
Buku Teks
Emery, Vince
Dinastindo , 1997
Buku Teks
edited by Mary J. Cronin
Harvard Business School Press , 1996
Buku Teks