Improving Basic Badminton Long Serve Skills through Demonstration Activities. JURNAL MUARA OLAHRAGA, [S. l.], v. 8, n. 2, 2026. DOI: 10.52060/jmo.v8i2.4357. Disponível em: https://ejournal.ummuba.ac.id/index.php/pjkr/article/view/4357. Acesso em: 21 sep. 2026.