Pehe, Abner. “Tingkat Kepercayaan Diri Terhadap Prestasi Atlet Tinju PPLD NTT”. MANGGUREBE: Journal Physical Education, Health and Recreation 2, no. 2 (September 30, 2021): 6-10. Accessed May 8, 2024. https://ojs3.unpatti.ac.id/index.php/pehr/article/view/3132.