Coronado, Wenceslao A., Charita A. Luna, e Dennis A. Tarepe. «Improving Students Van Hiele and Proof-Writing Ability Using Geometer’s Sketchpad». Journal of Social Sciences (COES&RJ-JSS) 6, no. 2S (Abril 1, 2017): 55–74. Acedido Julho 3, 2024. https://centreofexcellence.net/index.php/JSS/article/view/jss.2017.6.2S.55.74.