Wiasta, Made Angga, et al. “The Effect of Plyometric Training Methods: Hurdle Hops Jump and Box Jump on Leg Muscle Explosive Power and Blocking Skills of Male Volleyball Extracurricular Students at SMK Negeri 4 Bandar Lampung”. Jurnal Pendidikan Jasmani (JPJ), vol. 6, no. 1, July 2025, pp. 1-10, doi:10.55081/jpj.v6i1.3888.