Salsabila A, Fitri M, Williyanto S, Apriady H, Ockta Y. Examining personality traits and mental toughness: a comparative analysis among national and regional tarung derajat athletes. SPORTIF [Internet]. 2025 Jan. 22 [cited 2025 Jan. 31];10(4):63-77. Available from: https://ojs.unpkediri.ac.id/index.php/pjk/article/view/23251