Relationship Between Burnout Level and Mental Toughness in Basketball Athletes PORPROV Sinjai. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, [S. l.], v. 17, n. 3, p. 3078–3086, 2025. Disponível em: https://competitor.idjournal.eu/index.php/competitor/article/view/446. Acesso em: 19 mar. 2026.