Hidayat, Rahmat, et al. “Studi Komparatif Latihan Over Barrier Hop Dan Single Leg Hop Terhadap Frekuensi Tendangan Depan Atlet Tapak Suci”. Empiricism Journal, vol. 6, no. 3, Sept. 2025, pp. 1150-6, https://doi.org/10.36312/ej.v6i3.3485.