คูณทา จ.; พันธ์งาม อ. A Development of Mathematics Reasoning Ability Through the Heuristics Thinking Model for Prathom Suksa 3 Students of Ban Nongkhun School under Ubon Ratchathani Primary Educational Service Area Office 3. Ubon Ratchathani Journal of Research and Evaluation, [S. l.], v. 2, n. 1, p. 62–69, 2021. Disponível em: https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250839. Acesso em: 3 oct. 2026.