PISAPAK, J.; THIPKONG, S. The Development of Mathematics Ability in Solving Problems for Prathomsuksa 2 Students at Kasetsart University Laboratory School by Using Polya’s Problem Solving Process. Kasetsart Journal of Social Sciences, [S. l.], v. 30, n. 1, p. 1–9, 2009. Disponível em: https://so04.tci-thaijo.org/index.php/kjss/article/view/246479. Acesso em: 13 oct. 2026.