Tosem, S., Harnirattisai, T., Suntharapa, T., & Thongthawee, B. (2020). Effects of a Physical Activity Promoting Program on Self-Efficacy for Physical Activity, the Severity of Knee Osteoarthritis, and Balance among Persons with Knee Osteoarthritis. Nursing Research and Innovation Journal, 26(2), 172–187. Retrieved from https://he02.tci-thaijo.org/index.php/RNJ/article/view/235926