Kouzes, James M.
The leadership challenge
Jossey-Bass, 2002
Buku Teks
A challenge to President Roh's leadership
Artikel Jurnal
Challenge to leadership : managing in a changing world
The Conference Board; editor, Edward C. Bursk
The Free Press, 1973
Buku Teks
Kouzes, James M.
The leadership the challenge = tantangan kepemimpinan / James M. Kouzes
Erlangga, 2004
Buku Teks
Maier, Henry W
Challenge to the cities : an approach to a theory of urban leadership / Henry W. Maier
Random House, 1966
Buku Teks