Daniel, S. daniel and Widodo, A. 2020. sport science pengaruh latihan ladder drill 2 feet in each terhadap peningkatan kelincahan pada academy futsal meta surabaya u-18: the effect of 2feet in each ledder drill training on increasing agility at the U-18 Academy futsal meta surabaya. Kesehatan Olahraga. 9, 1 (Nov. 2020), 123–128. DOI:https://doi.org/10.26740/jurnal-kesehatan-olahraga.v9i1.36944.