Giartama, Giartama, Destriani Destriani, Waluyo Waluyo, and Muslimin Muslimin. “Efektivitas Alat Tes Servis Bolavoli Berbasis Mikrokontroller”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 6, no. 2 (August 31, 2020): 499-513. Accessed May 3, 2024. https://ojs.unpkediri.ac.id/index.php/pjk/article/view/14492.