Zi Sheng, Y. ., and C. . Whye Lian. “Quality of Life and Its Association With Individual and Park Characteristics Among Elderly Qi Gong Practitioners in Malaysia: 10.55131/Jphd/2022/200120”. Journal of Public Health and Development, vol. 20, no. 1, Jan. 2022, pp. 254-66, doi:10.55131/jphd/2022/200120.