JR, A. V. P.; PATAC, L. P.; JR, N. E. C. Students’ understanding of a geometric theorem: A case of grade 9 problem posing. JRAMathEdu (Journal of Research and Advances in Mathematics Education), [S. l.], v. 7, n. 2, p. 105–115, 2022. DOI: 10.23917/jramathedu.v7i2.16394. Disponível em: https://journals2.ums.ac.id/jramathedu/article/view/9531. Acesso em: 17 nov. 2025.