Julio Roberto, Maulana Fajar M. Development of a Speed Training Model Using Running with the Ball Technique for football Athletes Aged 15–17 Years. JPHR [Internet]. 2026 Jun. 27 [cited 2026 Aug. 13];7(1):1-9. Available from: https://journals.stokbinaguna.ac.id/index.php/JPHR/article/view/6010