PRACHUMKAYOHMAT, N.; MANAKARN, C.; CHARIYAMAKARN, R.; SRISAWAT, Y.; UMAR, N. The Nature of Mathematical Conceptual Understanding of Grade 6 Students on Weight Measurement Based on APOS Theory. Journal of Science, Agriculture and Technology, Narathiwat, Thailand, v. 2, n. 2, p. 43–57, 2024. Disponível em: https://li04.tci-thaijo.org/index.php/psj/article/view/2005. Acesso em: 5 jun. 2025.