Robert Heller

도서
DK Essential Managers: How to Delegate DK Essential Managers: How to Delegate
DK Essential Managers: How to Delegate
1999년
DK Essential Managers: Coaching Successfully DK Essential Managers: Coaching Successfully
DK Essential Managers: Coaching Successfully
2001년
DK Essential Managers: Managing Teams DK Essential Managers: Managing Teams
DK Essential Managers: Managing Teams
1999년
DK Essential Managers: Making Decisions DK Essential Managers: Making Decisions
DK Essential Managers: Making Decisions
1999년
DK Essential Managers: Managing Meetings DK Essential Managers: Managing Meetings
DK Essential Managers: Managing Meetings
1999년
DK Essential Managers: Managing Change DK Essential Managers: Managing Change
DK Essential Managers: Managing Change
1999년