RITONGA, S. Y. K.; MARYANTI, I. The Effect of the Student Facilitator and Explaining Learning Model on the Mathematics Learning Outcomes of Harapan Mekar Middle School Students in Medan. EDUCTUM: Journal Research, [S. l.], v. 2, n. 1, p. 25–29, 2023. DOI: 10.56495/ejr.v2i1.315. Disponível em: https://jurnal.larisma.or.id/index.php/EJR/article/view/315. Acesso em: 5 jul. 2025.