SUKAMTI, E. R., J. SAPUTRA, and S. SUGIHARTO. “Study of Sprint and Vertical Jump for Indonesian Athletes: Multi-Sectorial Testing”. Utopía Y Praxis Latinoamericana, Vol. 25, no. 1, Nov. 2020, pp. 419-28, http://www.produccioncientifica.luz.edu.ve/index.php/utopia/article/view/34390.