Riza Rizky Pratama R, Rahman R, Wahidi R. THE EFFECT OF LEFT MUSCLE STRENGTH EXERCISE ON JUMP SERV IN VOLLEY BALL GAMES IN EXTRACURRICULAR VOCATIONAL SCHOOL NEGERI 1 KUNINGAN. JPESS [Internet]. 2025Oct.7 [cited 2025Oct.17];7(2):18-3. Available from: https://jurnal.umkuningan.ac.id/index.php/jpess/article/view/2365