“The Effect of Fartlex Exercise on EnduranceFutsal Players for High School State 11 Jambi City” (2025) COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, 17(3), pp. 2522–2530. Available at: https://competitor.idjournal.eu/index.php/competitor/article/view/352 (Accessed: 19 March 2026).