CHAI–KUAD, N.; JUNWANDEE, P.; PAWABUTRA, C. DEVELOPMENT OF PROBLEM-SOLVING ABILITIES, MATHEMATICS LEARNING ACHIEVEMENT, AND SATISFACTION TOWARD LEARNING THROUGH MATHEMATICS LEARNING ACTIVITY PACKAGES ON FRACTIONS BASED ON ACTIVE LEARNING MODEL FOR PRATHOMSUKSA 3 STUDENTS UNDER THE OFFICE OF DUEA–SIWICHAI EDUCATIONAL NETWORK CENTER. Journal of Graduate School Sakon Nakhon Rajabhat University, Sakon Nakhon, Thailand, v. 22, n. 97, p. 1–20, 2025. Disponível em: https://so02.tci-thaijo.org/index.php/SNGSJ/article/view/270216. Acesso em: 1 oct. 2026.