The Effectiveness of Team’s Game Tournament Seen From Communication and Problem Solveing Capabilities (Experimental Study of Class VIII students in SMP Negeri 1 Seyegan). Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika, [S. l.], v. 1, n. 1, 2016. DOI: 10.26486/mercumatika.v1i1.185. Disponível em: https://ejurnal.mercubuana-yogya.ac.id/index.php/mercumatika/article/view/185. Acesso em: 21 jun. 2026.