THUPTHEIN, P.; UGSONKID, S.; CHUNTRA, C. The Study of Grade 11 Students’ Problem-Solving Ability on Sequences and Series by Using Teaching Through Problem Solving. Interdisciplinary Academic and Research Journal , Maha Sara Kham, TH., v. 6, n. 3, p. e291376, 2026. DOI: 10.60027/iarj.2026.e291376. Disponível em: https://so03.tci-thaijo.org/index.php/IARJ/article/view/291376. Acesso em: 1 oct. 2026.