AJI, S. K.; ENDANG RINI SUKAMTI; TOMOLIYUS TOMOLIYUS. Survey Of Anxiety And Self-Confidence Levels Of Badminton Athletes Before Competing In The Riau Kejurpov Championship: Anxiety and self-confidence or psychology. International Journal Of Humanities Education and Social Sciences (IJHESS) , [S. l.], v. 4, n. 4, 2025. DOI: 10.55227/ijhess.v4i4.1397. Disponível em: https://ijhess.com/index.php/ijhess/article/view/1397. Acesso em: 12 apr. 2026.