SOEMARDIAWAN, Soemardiawan; MUJRIAH, Mujriah; PRIMAYANTI, Intan; DARMAWAN, Lalu Heri. Improving Learning Outcomes of the Upper Serve Using Problem-Based Introduction (PBI) Learning in Volleyball Games. Indonesian Journal of Sport Management, [S. l.], v. 4, n. 3, 2024. DOI: 10.31949/ijsm.v4i3.11114. Disponível em: https://ejournal.unma.ac.id/index.php/ijsm/article/view/11114. Acesso em: 27 apr. 2025.