HIDAYATI, Litsa Arfi. Improving the Technology Competency of Junior High School Mathematics Teachers Using the Geogebra Application. EduMatrix: International Journal of Mathematics Education, [S. l.], v. 1, n. 1, p. 10–14, 2026. Disponível em: https://journal.kreasinumeratif.com/edumatrix/article/view/25. Acesso em: 14 aug. 2026.