GHURRI, Ainul et al.
 HIGH INTENSITY INTERVAL TRAINING LEBIH BAIK DARIPADA FARTLEK TRAINING TERHADAP PENINGKATAN VO2max DAN  LACTATE THRESHOLD PADA ATLET BOLA TANGAN KOTA SURABAYA.
<strong>Sport and Fitness Journal</strong>, [S.l.], v. 8, n. 3, p. 99-106, oct. 2020.
ISSN 2654-9182.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/sport/article/view/64678" target="_new">https://ojs.unud.ac.id/index.php/sport/article/view/64678</a>&gt;. Date accessed: 23 feb. 2025.
doi: <a href="https://doi.org/10.24843/spj.2020.v08.i03.p01">https://doi.org/10.24843/spj.2020.v08.i03.p01</a>.