A YUN, Q. Improving Students Activity and Students Learning Outcomes by Using NHT (Numbered Heads Together) with PBI (Problem Based Instruction). Jurnal Axioma : Jurnal Matematika dan Pembelajaran, [S. l.], v. 3, n. 1, p. 76–82, 2018. Disponível em: https://ejurnal.uij.ac.id/index.php/AXI/article/view/311. Acesso em: 26 apr. 2024.