CORONADO, W. A.; LUNA, C. A.; TAREPE, D. A. Improving students van Hiele and proof-writing ability using Geometer’s sketchpad. Journal of Social Sciences (COES&RJ-JSS), [S. l.], v. 6, n. 2S, p. 55–74, 2017. DOI: 10.25255/jss.2017.6.2S.55.74. Disponível em: https://centreofexcellence.net/index.php/JSS/article/view/jss.2017.6.2S.55.74. Acesso em: 4 may. 2024.