SUTIO, S. Application of Educational Game-Based Online Learning Media in Improving Mathematical Communication Skills . International Journal of Education Research and Development, [S. l.], v. 1, n. 2, p. 151–166, 2021. DOI: 10.52760/ijerd.v1i2.13. Disponível em: https://e-journal.yayasancec.or.id/index.php/corolla/article/view/13. Acesso em: 24 feb. 2026.