SARI, M.; SURYA, E. Improving the Learning Outcomes of Students using Numbered Heads Together Model in the Subjects of Mathematics. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 33, n. 3, p. 311–319, 2017. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7558. Acesso em: 3 may. 2024.