TREVE, Mark. Gamification in asynchronous online learning: A meta-analysis of its positive effects on motivation and academic achievement. Online Learning, Boston, MA, v. 30, n. 3, 2026. DOI: 10.24059/olj.v30i3.5188. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/5188. Acesso em: 2 sep. 2026.