GINTING, H.; SURYA, E. Development Learning Device Based for Measuring Contextual Critical Thinking Skills Students SD Class VI Mathematical. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 33, n. 3, p. 301–310, 2017. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7544. Acesso em: 2 may. 2024.