Collaborative Language Learning in Immersive Virtual Worlds: Competence-based Formative Feedback and Open Learner Modeling. International Journal of Serious Games, [S. l.], v. 1, n. 2, 2014. DOI: 10.17083/ijsg.v1i2.5. Disponível em: https://journal.seriousgamessociety.org/index.php/IJSG/article/view/5.. Acesso em: 17 jul. 2024.