T. Srimuang, C. Supucworakul, A. . Choprapun, J. Potisaen, and T. Potisaen, “The effect of yoga on health development of the elderly in Amphoe Na Dun Mahasarakham”, JRDI. RMU, vol. 8, no. 1, pp. 309–328, Apr. 2021.