PDF eB E-book de Vries, Imar | de Lange, Michiel | Raessens, Joost The Playful Citizen : Civic Engagement in a Mediatized Culture 2019 - Amsterdam university press
PDF eB E-book de Lange, Michiel | Frissen, Valerie | Lammes, Sybille Playful Identities : The Ludification of Digital Media Cultures 2015 - Amsterdam university press