Trisanda, Gita, Ni Putu Nita Wijayanti, Hirja Hidayat, and Muhammad Fiqri. 2022. “The Effect of Single-Leg Speed Hop Exercise on Leg Muscle of Aerobic Athletes”. Journal of Coaching and Sports Science 1 (1): 13-17. https://doi.org/10.58524/jcss.v1i1.105.