<https://www.businezz.nl/product/100-1902_Humor-een-relativerende-begeleidingsmethode>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Book>
<https://www.businezz.nl/product/100-1902_Humor-een-relativerende-begeleidingsmethode>