ALIM, Abdul. HUBUNGAN MOTIVASI, ATTITUDE, ANXIETY DAN SELF EFFICACY TERHADAP PRESTASI ATLET TENIS LAPANGAN LEVEL JUNIOR DAN SENIOR. MEDIKORA, [S. l.], v. 17, n. 2, p. 83–90, 2019. DOI: 10.21831/medikora.v17i2.29179. Disponível em: https://journal.uny.ac.id/index.php/medikora/article/view/29179. Acesso em: 8 may. 2025.