The Effect of Social Support and Self Efficacy on The Performance of Youth Swimmers. Journal Coaching Education Sports, [S. l.], v. 7, n. 1, p. 53–66, 2026. DOI: 10.31599/7hjnyq81. Disponível em: https://ejurnal.ubharajaya.ac.id/index.php/JCESPORTS/article/view/5329.. Acesso em: 3 may. 2026.