S. . . Khakhuen, H. Kongmaha, P. . . . . Thasanoh Elter, and W. . . Phantong, “Activities of Daily Living and Quality of Life among Older Adults in Nakhon Ratchasima Province”, NJPH (วารสาร พ.ส.), vol. 30, no. 2, pp. 104–120, Aug. 2020.