Michael Sailer,Jan Ulrich Hense,Sarah Katharina Mayr,Heinz Mandl.How gamification motivates: An experimental study of the effects of specific game design elements on psychological need satisfaction[J].Computers in Human Behavior,2017.
Daphne Geelen, David Keyson, Stella Boess, Han Brezet.Exploring the use of a game to stimulate energy saving in households[J].J. of Design Research,2012.