Pomo warih Adi, Singgih Hendarto, Sapta Kunta Purnama, Rumi Iqbal Doewes, Sugiyanto, and Muchsin Doewes. “Methods Of Physical Exercise As A Way To Optimize The Physical Condition Of Football Players: A Systematic Review”. South Eastern European Journal of Public Health (April 9, 2023): 34–56. Accessed June 22, 2024. https://seejph.com/index.php/seejph/article/view/377.