hendra, hendra. 2023. “The Contribution of Wrist Flexibility to Smash Accuracy in Volleyball Games Rajawali Club Athletes, Pelangiran District Indragiri Hilir Regency”. JOI (Jurnal Olahraga Indragiri): Olahraga, Pendidikan , Kesehatan, Rekreasi 7 (1):26-32. https://doi.org/10.61672/joi.v7i1.2616.