
If you do not know how to ask the right question, you discover nothing.
William Edwards Deming
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juni
03
2013

If you do not know how to ask the right question, you discover nothing.
William Edwards Deming
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Time is the scarcest resource and unless it is managed nothing else can be managed. Peter Drucker |
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Effectief Tijdbeheer Bij Bol.com of Managementboek |