SUKIRI, S.; NURULFA, R.; MUSA, M.; RAHMADI, T. .; SETIAWAN, I. MENGUKUR PERCAYA DIRI, MOTIVASI BERPRESTASI ATLET ATLETIK REMAJA . Jurnal Speed (Sport, Physical Education, Empowerment), [S. l.], v. 4, n. 01, p. 64–68, 2021. DOI: 10.35706/jurnalspeed.v4i01.4901. Disponível em: https://journal.unsika.ac.id/speed/article/view/4901. Acesso em: 19 nov. 2024.