Raharjo, Slamet, Mahmud Yunus, Ramdan Pelana, and Raja Mohammed Firhad Raja Azidin. 2023. “The Benefit of a Four-Week Range of Motion Exercise on Hand Muscle Strength in Children With Down Syndrome”. Pedagogy of Physical Culture and Sports 27 (6):481-86. https://doi.org/10.15561/26649837.2023.0606.