AZIZ, M. F.; HASIBUAN, M. H.; PRABOWO, E. Efektifitas Tekhnik PNF Hold Relax dan Contract Relax Terhadap Peningkatan Fleksibilitas Otot Pinggang Atlet Tim Nasional Judo. Jurnal Olahraga Kebugaran dan Rehabilitasi (JOKER), [S. l.], v. 3, n. 2, p. 152–157, 2023. DOI: 10.35706/joker.v3i2.9993. Disponível em: https://journal.unsika.ac.id/index.php/joker/article/view/9993. Acesso em: 10 mei. 2024.