“The Effectiveness of Resistance Band Training On Increasing Punch Power of Martial Arts Athletes PJKR Students of Insan Budi Utomo University Malang”. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, vol. 18, no. 1, Feb. 2026, pp. 1721-33, https://competitor.idjournal.eu/index.php/competitor/article/view/669.