POLMER SIAGIAN. Efforts to Improve Student Learning Outcomes in the Volleyball Bottom Passing Learning Process Through the Use of the Demonstration Method in Class VIII-9 UPT SPF SMP Negeri 2 Sunggal Academic Year 2022/2023. Indonesian Journal of Educational Science and Technology, [S. l.], v. 2, n. 4, p. 355–378, 2023. DOI: 10.55927/nurture.v2i4.6760. Disponível em: https://journal.formosapublisher.org/index.php/nurture/article/view/6760. Acesso em: 26 jun. 2026.