Nurulfa, Rizky, UNJ, Indonesia

• Jurnal Speed (Sport, Physical Education, Empowerment) Vol. 4 No. 01 (2021): JURNAL SPEED Sport, Physical Education, Empowerment - Artikel
  MENGUKUR PERCAYA DIRI, MOTIVASI BERPRESTASI ATLET ATLETIK REMAJA
  Abstract  PDF (Bahasa Indonesia)