Jobber, David
Selling and sales management
Prentice-Hall, 2000
 Buku Teks
Thomas, Wayne M.
The Sales manager's success manual
Amacom, 2008
 Buku Teks
Thomas, Wayne M.
The sales manager's success manual
Amacom, 2008
 eBooks
Miller, William
Proactive sales management: how to lead, motivate, and stay ahead of the game
American Management Association, 2009
 eBooks
Lambert, Brian W.
World-class selling: new sales competencies
American Society for Training & Development, 2009
 eBooks