“Mindset And Mental Toughness Of Basketball Athletes Under 18 Years Old”, Compet. J. Pendidik. Kepelatihan Olahraga, vol. 17, no. 1, pp. 351–357, Feb. 2025, Accessed: Mar. 19, 2026. [Online]. Available: https://competitor.idjournal.eu/index.php/competitor/article/view/195