Week 6
Creative Education Foundation. (2013). What is Creative Problem Solving? Verkregen op 30, september, 2013 van https://www.creativeeducationfoundation.org/our-process/what-is-cps.
Creative Education Foundation. (2013). What is Creative Problem Solving? Verkregen op 30, september, 2013 van https://www.creativeeducationfoundation.org/our-process/what-is-cps.