“PENGARUH LATIHAN LADDER DRILLS SPEED RUN TERHADAP KECEPATAN (SPEED)”, SATRIA, vol. 2, no. 2, pp. 1–5, Nov. 2019, Accessed: Jan. 16, 2026. [Online]. Available: http://publikasi.stkippgri-bkl.ac.id/index.php/SATRIA/article/view/19