ANGGRAINI, S. Learning Concepts Learning Approach Models in Improving Students’ Understanding of Mathematical Concepts. EDUCTUM: Journal Research, [S. l.], v. 2, n. 5, p. 136–139, 2023. DOI: 10.56495/ejr.v2i5.416. Disponível em: https://jurnal.larisma.or.id/index.php/EJR/article/view/416. Acesso em: 2 aug. 2025.