“the The Effect of Oregon Circuit Training and Tabata on Increasing VO2Max in Male Junior Karate Athletes at Tako Dojo Kodim 0206 Dairi in 2025: Eng”. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, vol. 17, no. 3, Oct. 2025, pp. 2771-9, https://doi.org/10.26858/cjpko.v17i3.402.