Saputra, Noprian Dwi, et al. “KONTRIBUSI OTOT LENGAN TERHADAP HASIL SERVIS ATAS DALAM PERMAINAN BOLA VOLI EKSTRAKULIKULER SMPN 2 JUJUHAN”. Master of Physical Culture and Recreation in Nusantara, vol. 1, no. 2, Dec. 2025, pp. 56-64, https://doi.org/10.63461/gejora.v12.256.