EMILIA; FAHRUDIN, F. A.; ARVY, B. R. The Effect of Collaborative Learning on Students’ Mathematical Communication and Problem-Solving Skills in Polyhedra. Jurnal Pendidikan Matematika (JPM), [S. l.], v. 12, n. 1, p. 13–23, 2026. DOI: 10.33474/jpm.v12i1.24909. Disponível em: https://riset.unisma.ac.id/index.php/jpm/article/view/24909. Acesso em: 24 jul. 2026.