RISATI, T. PERBEDAAN PEMECAHAN MASALAH MODEL KOOPERATIF STAD DAN NHT. Relevan : Jurnal Pendidikan Matematika, [S. l.], v. 1, n. 1, p. 58–62, 2021. Disponível em: https://ejournal.yana.or.id/index.php/relevan/article/view/50. Acesso em: 29 apr. 2026.