SIREGAR, N. C.; ROSLI, R.; MAAT, S. M. The Effects of a Discovery Learning Module on Geometry for Improving Students’ Mathematical Reasoning Skills, Communication and Self-Confidence. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 19, n. 3, p. 214–228, 2020. Disponível em: http://ijlter.myres.net/index.php/ijlter/article/view/414. Acesso em: 12 jan. 2026.