AHMAD, M.; SIREGAR, Y. P.; SIREGAR, N. A.; EFFENDI, H. Realistic Math-Based Learning Model Based on Mandailing Culture. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 39, n. 1, p. 67–78, 2018. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8501. Acesso em: 3 may. 2024.