RAHMAWATI, S.; FAUZAN, E. The Influence of Drill Defense Training on Improving Underhand Passing Skills in Volleyball at the Extracurricular Program Of SMA Negeri 1 Lebakwangi. Jurnal Pendidikan Jasmani (JPJ), v. 6, n. 1, p. 211-222, 26 Jul. 2025.