Rasna, Rasna, et al. “Kontribusi Daya Ledak Tungkai Dan Kecepatan Reaksi Kaki Terhadap Kemampuan Lari 100 Meter”. Journal of Sport Education, Coaching, and Health (JOCCA), vol. 2, no. 3, Sept. 2021, pp. 111-23, doi:10.35458/jc.v2i3.1243.