?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=-&rft.aulast=Rizal+Hidayat&rft.au=Rizal+Hidayat%2C+-&rft.date=26+August+2025&rft.title=THE+EFFECT+OF+CORE+STABILITY+EXERCISES+ON+THE+ACCURACY+OF+JUMP+SERVE+VOLLEYBALL+ATHLETES&rft.inst=Universitas+Pendidikan+Indonesia&rft.degree=S1