Sandi, Kurnia, Feren Fedora, Komarudin Komarudin, & Hedi Ardiyanto Hermawan. " The Effect of High-Intensity Interval Training (HIIT) in Increasing Endurance and Preventing Injuries in Football Players." Physical Activity Journal (PAJU) [Online], 6.1 (2024): 41-52. Web. 23 Feb. 2025