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People don't buy what you do, they buy why you do it.

Simon Sinek

 

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Lean boeken top 5

(maart 2016)
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dig eliminate problems shigeo shingo

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to sell is human daniel pink

To Sell is Human
The Surprising Truth About Persuading, Convincing, and Influencing Others
Daniel H. Pink

Bij Bol.com of Managementboek.nl



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