อินทร์พรม ส, Laksana K. Efeects of Learning Fractions Through a Concrete Pictorial Abstract Approach (CPA) with Board Games on Prathomsuksa 3 Students’ Learning Achievement. jma [internet]. 2025 Jul. 29 [cited 2026 Aug. 29];12(2):316-28. available from: https://so04.tci-thaijo.org/index.php/JMA/article/view/279664