“PENGARUH LATIHAN DOUBLE LEG HOPS DAN STEP UP BOX JUMP TERHADAP POWER OTOT TUNGKAI”. JURNAL KOULUTUS 4, no. 1 (August 24, 2021): 63–72. Accessed November 24, 2024. https://ejournal.kahuripan.ac.id/index.php/koulutus/article/view/561.