KO-IN, B.; CHUNTRA, C.; SOMCHAIPENG, T. The Study of Mathematical Problem-Solving Ability on Ratio, Proportion and Percentage for Vocational Certificate Students Using Learning Management Based on Model-Eliciting Activities (MEAs). Journal of Buddhist Education and Research (JBER), [S. l.], v. 12, n. 1, p. 27–42, 2026. Disponível em: https://so06.tci-thaijo.org/index.php/jber/article/view/285304. Acesso em: 1 oct. 2026.