RUEANGPHANKUN, T. . SOLVING PROBLEMS OF MATHEMATICS LEARNING ON PERCENTAGES AND RATIOS BY USING SKILL - BUILDING EXERCISES FOR PRATHOM 6 STUDENTS AT THANASITANUSORN SCHOOL. Journal of MCU Nakhondhat, Nakhon Si Thammarat, Thailand, v. 10, n. 9, p. 137–144, 2023. Disponível em: https://so03.tci-thaijo.org/index.php/JMND/article/view/272024. Acesso em: 14 mar. 2025.