jan
16
2012
Bron: www.loesje.nl
He who reigns within himself and rules his passions, desires, and fears is more than a king.
John Milton
Beïnvloeden van gedrag De nieuwe wetenschap om verandering te leidenJoseph Grenny, Kerry Patterson, David Maxfield, Ron McMillan, Al Switzler
Bij Managementboek