Mental Skill Sebagai Character Building Wasit Tenis Lapangan. JSH: Journal of Sport and Health, [S. l.], v. 2, n. 1, p. 15–19, 2021. DOI: 10.26486/jsh.v2i1.1515. Disponível em: https://ejurnal.mercubuana-yogya.ac.id/index.php/JSH/article/view/1515. Acesso em: 30 jun. 2026.