BALKIST, P. S.; LUKMAN, H. S.; ANDRIANI, N. DEVELOPMENT OF SOCIAL ARITHMETIC TEACHING MATERIALS TO IMPROVE UNDERSTANDING OF MATHEMATICAL CONCEPTS OF JUNIOR HIGH SCHOOL STUDENTS. De Fermat : Jurnal Pendidikan Matematika, [S. l.], v. 5, n. 2, p. 154–159, 2022. DOI: 10.36277/defermat.v5i2.84. Disponível em: https://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/84. Acesso em: 21 nov. 2024.