Cadwell, Charles M.
Leadership skills for managers
[American Management Association, ], 2004
 eBooks
Kouzes, James M.
The leadership challenge : how to make extraordinary things happen in organizations
Jossey-bass, 2012
 Buku Teks
Ciampa, Dan
Right from the start: taking charge in a new leadership role / Dan Ciampa, Michael Watkins
Harvard Business School Press, 1999
 Buku Teks
Underhill, Brian O.
Executive coaching for results : the definitive guide to developing organizational leaders
Berrett-Koehler Publishers, Inc., 2007
 Buku Teks
Kouzes, James M.
The leadership challenge
Jossey-Bass, 2002
 Buku Teks