SUKOWATI, B. A.; MASDUKI, M. Students’ instrumental understanding in solving spatial mathematical problems across levels of mathematical ability. JRAMathEdu (Journal of Research and Advances in Mathematics Education), [S. l.], v. 9, n. 4, p. 273–284, 2024. DOI: 10.23917/jramathedu.v9i4.13832. Disponível em: https://journals2.ums.ac.id/jramathedu/article/view/13832. Acesso em: 21 jan. 2026.