M, B. A.; SARI, I. E. P. Efforts to Improve Learning Outcomes passing Down Volleyball Variations Through Learning and Modified Ball On Private Junior High School eighth grade students Perbaungan Satria Dharma School Year 2019/2020: Efforts to Improve Learning Outcomes passing Down Volleyball Variations Through Learning and Modified Ball On Private Junior High School eighth grade students Perbaungan Satria Dharma School Year 2019/2020. Journal of Midwifery and Nursing, [S. l.], v. 2, n. 1, p. 173-176, 2019. Disponível em: https://iocscience.org/ejournal/index.php/JMN/article/view/469. Acesso em: 25 apr. 2026.