Tio Khalasya, Kardjono, & Awwaludin, P. N. (2026). Effectiveness of Fast Interval Training in The Competition Phase on Stamina Level of 800m Runner at Satset Athletic Club. Jurnal Pendidikan Jasmani (JPJ), 6(3), 696–701. https://doi.org/10.55081/jpj.v6i3.4731