SYAM, Masrum et al.
 PERBANDINGAN EFEKTIVITAS KONTRAKSI (25%, 50% DAN 75%) DARI NILAI KONTRAKSI MAKSIMAL PADA TEKNIK CONTRACT RELAX TERHADAP PENINGKATAN FLEKSIBILITAS OTOT HAMSTRING.
<strong>Sport and Fitness Journal</strong>, [S.l.], jan. 2018.
ISSN 2654-9182.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/sport/article/view/36524" target="_new">https://ojs.unud.ac.id/index.php/sport/article/view/36524</a>&gt;. Date accessed: 07 feb. 2025.
doi: <a href="https://doi.org/10.24843/spj.2018.v06.i01.p03">https://doi.org/10.24843/spj.2018.v06.i01.p03</a>.