Wulfen, G. V. (2021). Online innovation: Practical methods, techniques and tools to kick-start you 100% online. BIS Publishers.
Chicago-referens (17:e uppl.)Wulfen, Gijs Van. Online Innovation: Practical Methods, Techniques and Tools to Kick-start You 100% Online. Amsterdam, The Netherlands: BIS Publishers, 2021.
MLA-referens (9:e uppl.)Wulfen, Gijs Van. Online Innovation: Practical Methods, Techniques and Tools to Kick-start You 100% Online. BIS Publishers, 2021.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.