Simadamrong P. “Comparison of Balance in Exercise Elderly Among Tai Chi, Walking, Running and Ballroom Dancing”. Journal of The Department of Medical Services 44, no. 4 (August 1, 2019): 67–72. Accessed October 1, 2022. https://he02.tci-thaijo.org/index.php/JDMS/article/view/246691.