Analisis Komparasi Buku Teks Matematika Indonesia dan Singapura pada Topik Sistem Persamaan Linear Dua Variabel. Circle: Jurnal Pendidikan Matematika, [S. l.], v. 3, n. 1, p. 82–95, 2023. DOI: 10.28918/circle.v3i1.335. Disponível em: https://e-journal.uingusdur.ac.id/circle/article/view/circle2317. Acesso em: 7 aug. 2026.