Noviana, Mita, dan Dwi Nilamsari. “The Effect Of Physio Ball Exercise On Sitting Balance In Children With Spastic Cerebral Palsy: The Effect Of Physio Ball Exercise On Sitting Balance In Children With Spastic Cerebral Palsy”. Jurnal Fisioterapi Indonesia 1, no. 1 (Mei 11, 2021). Diakses November 26, 2022. https://jurnalfisioindonesia.com/jfi/index.php/jfti/article/view/6.