DAOPA, C.; BOONSENA, N. Attitudes of Students Using Open-Ended Problem. Dhammathas Academic Journal, [S. l.], v. 23, n. 3, p. 273–286, 2023. Disponível em: https://so06.tci-thaijo.org/index.php/dhammathas/article/view/258557. Acesso em: 16 sep. 2026.