Nursaba, Siti, Komarudin Komarudin, Mochamad Yamin Saputra, and Geraldi Novian. “Athlete Self-Confidence Questionnaire (ASQ): A Valid and Reliable Instrument for Measuring Athlete Self-Confidence”. Jorpres (Jurnal Olahraga Prestasi) 20, no. 2 (September 20, 2024): 10–15. Accessed June 20, 2025. https://journal.uny.ac.id/index.php/jorpres/article/view/73311.