RATTHA, K.; SUPUCWORAKUL, C. .; BOONTONGTHERNG, P. . Development to Learning Analytical Thinking and Achievement in Geography of Students in Matthayomsuksa 2 by Using Problems-Based Learning Activities. Journal of Research and Development Institute Rajabhat Maha Sarakham University, [S. l.], v. 7, n. 2, p. 59–74, 2020. Disponível em: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/240662. Acesso em: 1 may. 2024.