HARAHAP, M. Improving Mathematics Learning Outcomes in Adding Fractions Material Through an Active Student Learning Model in Class VII SMP Negeri 1 Batang Onang Batang Onang District 2022 – 2023 Academic Year. EDUCTUM: Journal Research, [S. l.], v. 2, n. 2, p. 59–65, 2023. DOI: 10.56495/ejr.v2i2.488. Disponível em: https://jurnal.larisma.or.id/index.php/EJR/article/view/488. Acesso em: 2 aug. 2025.