Hamid, Muflih Wahid, and Tri Angriawan. “The Missing Foundation of Mental Preparation: A Cross-Sectional Analysis of Level-2 Mental Skills Use in Indonesian Student-Athletes”. Journal of Sport Education, Coaching, and Health (JOCCA) 6, no. 3 (September 21, 2025): 346-355. Accessed February 18, 2026. https://jurnal.sainsglobal.com/index.php/jc/article/view/4828.