Frigon, Normand L.
The leader : developing the skills & personal qualities you need to lead effectively / Normand L. Frigon and Harry K. Jackson
N.Y. American Management Association , 1996
 Buku Teks
Muhammad Syafi`i Antonio
Ensiklopedia leadership & manajemen Muhammad SAW "the super leader super manager"; Vol. I
Tazkia Publishing, 2010
 Buku Teks
Clemens, John
Time mastery: how temporal intelligence will make you a stronger, more effective leader
American Management Association, 2005
 eBooks
Kush, Brian D.
Auditing leadership: the professional and leadership skills you need
John Wiley & Sons, 2009
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Topchik, Gary S.
The accidental manager: get the skills you need to excel in your new career
[American Management Association;, ], 2004
 eBooks