The Effect of Uphill Running And Ladder Drill Training On 50 M Sprint Running Speed of Grade VII Students At SMPN 2 Palu. Compet. J. Pendidik. Kepelatihan Olahraga [Internet]. 2025 Aug. 6 [cited 2025 Aug. 24];17(2):1617-2. Available from: https://competitor.idjournal.eu/index.php/competitor/article/view/238