KICKMEIER-RUST, M. D.; HILLEMANN, E. C.; ALBERT, D. Gamification and Smart, Competence-Centered Feedback: Promising Experiences in the Classroom. International Journal of Serious Games, [S. l.], v. 1, n. 1, 2014. DOI: 10.17083/ijsg.v1i1.7. Disponível em: https://journal.seriousgamessociety.org/index.php/IJSG/article/view/7. Acesso em: 30 sep. 2022.