TANGSA-NGUANTHAM, A.; THIPKONG, S.; CHUNTRA, C.; LERTAMORNPONG, C. Using Van Hiele model to develop instruction in geometric proof for mathayomsuksa three students. Kasetsart Journal of Social Sciences, [S. l.], v. 39, n. 1, p. 634–644, 2018. Disponível em: https://so04.tci-thaijo.org/index.php/kjss/article/view/242475. Acesso em: 7 may. 2024.