Managers as leaders
Harvard Bussiness School Press, 1990
 Buku Teks
Blank, Warren
The 108 skills of natural born leaders
[American Management Association, ], 2001
 eBooks
Mackoff, Barbara
The inner work of leaders : leadership as a habit of mind
American Management Association, 2001
 Buku Teks
Zenger, John H.
The Handbook for leaders: 24 lessons for extraordinary leadership
McGraw-Hill, 2003
 Buku Teks
Aubrey, Bob, 1921-2014
Creating aspirational leaders : the global workforce advantage
McGraw-Hill, 2012
 Buku Teks