
Effective leadership is putting first things first. Effective management is discipline, carrying it out.
Stephen Covey
juli
13
2011

Effective leadership is putting first things first. Effective management is discipline, carrying it out.
Stephen Covey
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Time is our most valuable asset, yet we tend to waste it, kill it, and spend it rather than invest it. Jim Rohn |
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Het complete boek - Excel voor professionals Bij Bol.com | Managementboek
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