“The Effect of Intermittent Fartlek Training On The Aerobic Endurance Ability of Extra-Curricular Basketball Players At SMAN 1 Blega”. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, vol. 17, no. 2, June 2025, pp. 1227-32, https://doi.org/10.26858/cjpko.v17i2.154.