DUANGSONG, P.; PANSUPPAWAT, T.; KHAMHAENGPOL, A. Development of Critical Thinking Abilities and Learning Achievement of Mathayomsuksa 1 Students Entitled Substances Around Us by Using Problem-Based Learning and Graphic Organizers. Journal of Education Rajabhat Maha Sarakham University, Bangkok, Thailand, v. 19, n. 2, p. 165–177, 2022. Disponível em: https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/258624. Acesso em: 2 may. 2024.