Widjanantie, S. C., Tulaar, A. B., Kasjmir, Y. I., & Prasetyo, S. B. (2018). Knee function measured by timed up-and-go test and stair-climbing test after isometric exercise of quadriceps femoris muscles in female patients with knee osteoarthritis. Indonesian Journal of Rheumatology, 3(1). https://doi.org/10.37275/ijr.v3i1.39