Prevalence and Weight Class Differences in Sleep Quality Among Competitive Jujitsu Athletes in Indonesia. Journal Coaching Education Sports, [S. l.], v. 7, n. 1, p. 129–141, 2026. DOI: 10.31599/h4dsqp35. Disponível em: https://ejurnal.ubharajaya.ac.id/index.php/JCESPORTS/article/view/5109.. Acesso em: 18 may. 2026.