TANUKAEW, K. T.; KLIN-EAM, C. THE DEVELOPMENT OF MATHEMATIC LEARNING ACTIVITIES USING ACTIVITY – BASED LEARNING TO ENHANCE SYSTEMS THINKING ABILITY ON THE TOPIC OF PARALLELOGRAMS FOR STUDENTS IN GRADE 5. Journal of Buddhist Education and Research (JBER), [S. l.], v. 10, n. 2, p. 1–15, 2024. Disponível em: https://so06.tci-thaijo.org/index.php/jber/article/view/275970. Acesso em: 20 sep. 2026.