Fahrezi, A. A., Y. Supatmo, M. Marijo, and R. M. S. . Adji. “Comparison of Combination of Foot Exercise With and Without Hydrotherapy to the Range of Motion on Active Knee Joints and Ankle Joints In The Elderly”. Medica Hospitalia : Journal of Clinical Medicine, vol. 10, no. 1, Mar. 2023, pp. 26-31, doi:10.36408/mhjcm.v10i1.814.