SAENSANIT, S.; WITCHARAPOTE, J.; TIAMVONG, V. The Development of Problem-Solving Skills and Academic Achievement of Students in Grade 5 on Economics By Organizing Learning Using Problem-Based Learning (PBL). Journal of Graduate MCU KhonKaen Campus, [S. l.], v. 13, n. 2, p. 281–296, 2026. Disponível em: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/282579. Acesso em: 1 oct. 2026.