Saengthon, Nanthikarn, Suparb Aree-Ue, Phichpraorn Youngcharoen, and Viroj Kawinwonggowit. 2019. “Pain, Physical Activity, and Quality of Life Among Older Adults With Knee and Hip Conditions: A Comparative Study”. Nursing Research and Innovation Journal 25 (1):74-86. https://he02.tci-thaijo.org/index.php/RNJ/article/view/141782.