Fatchurrahman, F., Sudijandoko, A. and Widodo, A. 2019. The comparison of the effect of ladder drills in out training and ladder drills ickey shuffle exercises on increasing speed and agility. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran. 5, 1 (May 2019), 154 - 165. DOI:https://doi.org/10.29407/js_unpgri.v5i1.12753.