Mat Wajib, et al. “PENGARUH HIGH INTENSITY INTERVAL TRAINING TERHADAP PENINGKATAN VO2MAX ATLET LARI JARAK JAUH”. Jurnal Ilmiah STOK Bina Guna Medan, vol. 10, no. 2, Oct. 2022, pp. 44-49, doi:10.55081/jsbg.v10i2.674.