SADOD, M. The development and accomplishment of education and ability in solving statistical mathematic problems by KWDL of matthayom 1th students. Journal of Research and Development Institute Rajabhat Maha Sarakham University, [S. l.], v. 7, n. 2, p. 263–274, 2020. Disponível em: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/240671. Acesso em: 5 may. 2024.