Royana, Ibnu Fatkhu, Utvi Hinda Zhannisa, and Tubagus Herlambang. 2019. “Roll Spin: Forehand Spin Training Media in Table Tennis”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 5 (1):113-23. https://doi.org/10.29407/js_unpgri.v5i1.12850.