Juwita, C. P., R. Damayanti, Besral, D. Aras, and James Manik. “Severity Grade of Complaints from X-Ray Imaging on the Elderlies With Knee Osteoarthritis”. International Journal Of Community Medicine And Public Health, vol. 10, no. 12, Nov. 2023, pp. 4649-53, doi:10.18203/2394-6040.ijcmph20233758.