Muhamad Azlan Karo-Karo, Orbit Irwansyah, Melfa Br Nababan. THE INFLUENCE OF SKIPPING EXERCISES ON SMASH JUMP PERFORMANCE IN GRADE VIII STUDENTS OF SMP NEGERI 1 LAUBALENG. IJSET [Internet]. 2025 Jun. 29 [cited 2026 Apr. 28];4(7):4006-12. Available from: https://ijset.org/index.php/ijset/article/view/1280