JANSRAHANG, S.; SOIKUDRUA, N.; KHECHORNPHAK, T.; RUNDON, B.; SOMTAW, T. The Development Learning Activities on Concentration by using Polya’s Problem Solving Process with Multimedia for Mathayomsuksa 4 students Phadungnaree School. Journal for Developing the Social and Community , Bangkok, Thailand, v. 10, n. 3, p. 567–586, 2023. Disponível em: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/266670. Acesso em: 2 sep. 2026.