The Differential Effects of Circuit Training and High-Intensity Interval Training (HIIT) Methods on VO₂Max Improvement in Pencak Silat Athletes at SMA Negeri 2 Taruna Pamong Praja, East Java. (2025). COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, 17(2), 1039-1047. https://doi.org/10.26858/cjpko.v17i2.74010