Influencer,
de kracht achter succesvol veranderen
Kerry Patterson, Joseph Grenny, David Maxfield, e.a.
okt
11
2011
Influencer,
de kracht achter succesvol veranderen
Kerry Patterson, Joseph Grenny, David Maxfield, e.a.
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Reality is that which, when you stop believing in it, doesn't go away. Philip K. Dick |
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