SARAGIH, D. I.; SURYA, E. Analysis the Effectiveness of Mathematics Learning Using Contextual Learning Model. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 34, n. 1, p. 135–143, 2017. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7494. Acesso em: 29 apr. 2024.