Jiraphan, J., P. Pensri, P. Vadhanasin, and C. Lawsirirat. “Benefits of an 8-Form Tai Chi Training Exercise on Balance Performance, Falling Risk, and Muscle Strengths in Elderly With Limited Strength: A Feasibility Study”. Asian Journal of Applied Sciences, vol. 7, no. 3, June 2019, doi:10.24203/ajas.v7i3.5869.