Zuhdi, Fakhru, et al. “Kontribusi Daya Ledak Otot Tungkai Terhadap Kemampuan Lompat Jauh”. Journal Athletic and Sport Nutrition, vol. 1, no. 1, May 2021, pp. 16-22, https://journal.uir.ac.id/index.php/jasti/article/view/6830.