HAFIZAH, N.; NURHALIMAH, S.; UTAMI, W. L.; WAHYUNI, R. Mathematical Communication Skills of Junior High School Students: Challenges and Opportunities in Triangle Material. International Journal of Geometry Research and Inventions in Education (Gradient), [S. l.], v. 2, n. 01, p. 57–71, 2025. DOI: 10.56855/gradient.v2i01.1335. Disponível em: https://journals.eduped.org/index.php/Gradient/article/view/1335. Acesso em: 30 aug. 2025.