Alwi Nur, et al. “HUBUNGAN PERCAYA DIRI TERHADAP KEMAMPUAN SMASH BOLA VOLI TIM RAJAWALI PIR TRANS SOSA ”.
Journal Of Sport Education and Training
, vol. 4, no. 1, July 2023, pp. 10-18, https://journal.upp.ac.id/index.php/joset/article/view/1702.