Widyantoro, Adhitya Putra, Ika Rosdiana, and Minidian Fasitasari. 2012. “The Correlation of Exercise and Range of Motion (ROM) on Elderly Knee Observasional Study on Elderly People in Pedurungan Semarang”. Sains Medika: Jurnal Kedokteran Dan Kesehatan 4 (1): 39-45. https://doi.org/10.30659/sainsmed.v4i1.383.