HASIBUAN, S. S.; HASIBUAN, E. R.; HASIBUAN, S. A. Penerapan Model Pembelajaran Group Investigasi Dalam Meningkatkan Kemampuan Representasi Matematis. Journal of Information System and Education Development, [S. l.], v. 2, n. 2, p. 24–28, 2024. DOI: 10.62386/jised.v2i2.71. Disponível em: https://journal.mwsfoundation.or.id/index.php/jised/article/view/71. Acesso em: 3 nov. 2025.