MORU, E. K.; MALEBANYE, M.; MOROBE, N.; GEORGE, M. J. A Van Hiele Theory analysis for teaching volume of threedimensional geometric shapes. JRAMathEdu (Journal of Research and Advances in Mathematics Education), [S. l.], v. 6, n. 1, p. 17–31, 2020. DOI: 10.23917/jramathedu.v6i1.11744. Disponível em: https://journals2.ums.ac.id/jramathedu/article/view/9331. Acesso em: 17 nov. 2025.