RIA IRAWATI; SRI WAHYUNI. Numbered Heads Together (Nht) Cooperative Learning Model on Students’ Mathematic Problem Solving Ability Study on Class ViII Students of Golden Star Informatics SMP. Mathematics Research and Education Journal, [S. l.], v. 6, n. 2, 2022. DOI: 10.25299/mrej.2022.vol6(2).10145. Disponível em: https://journal.uir.ac.id/index.php/JPM/article/view/10145. Acesso em: 21 jul. 2026.