1. From game design elements to gamefulness
2. Kevin Werbach and Dan Hunter. 2012. For the Win: How Game Thinking Can Revolutionize Your Business. Wharton Digital Press. Kevin Werbach and Dan Hunter. 2012. For the Win: How Game Thinking Can Revolutionize Your Business. Wharton Digital Press.
3. Old Wine in New Badges. Learning Education and Games Vol. 2. ETC Press 61--85. Old Wine in New Badges. Learning Education and Games Vol. 2. ETC Press 61--85.
4. Scott Nicholson. 2012. Strategies for Meaningful Gamification: Concepts behind Transformative Play and Participatory Museums. Presented at Meaningful Play 2012. Retrieved April 4 2017 from 4http://scottnicholson.com/pubs/meaningfulstrategies.pdf Scott Nicholson. 2012. Strategies for Meaningful Gamification: Concepts behind Transformative Play and Participatory Museums. Presented at Meaningful Play 2012. Retrieved April 4 2017 from 4http://scottnicholson.com/pubs/meaningfulstrategies.pdf