Yunita Mandasari, and Gita Nurgaya Br Tarigan. “Fifth Graders’ Knowledge of the Backward Roll at Pertiwi Private Elementary School, Medan”. Musamus Journal of Physical Education and Sport (MJPES) 8, no. 3 (July 30, 2026): 1453-1460. Accessed October 19, 2026. https://ejournal.unmus.ac.id/index.php/physical/article/view/8075.