
Concentration is the key to economic results. No other principles of effectiveness is violated as constantly today as the basic principle of concentration
Peter Drucker
Tags:
juni
14
2011

Concentration is the key to economic results. No other principles of effectiveness is violated as constantly today as the basic principle of concentration
Peter Drucker
|
If you don't know where you're going, you're unlikely to end up there. Forrest Gump |
|
|
Online trainen Bij Bol.com | Managementboek
|