Horpibulsuk, J., W. Nutkhum, and P. Jongjol. “Handgrip strength of community-dwelling elderly in Nakhon Ratchasima Province, Thailand”. Biomedical Sciences and Clinical Medicine, vol. 58, no. 1, Jan. 2019, pp. 15-22, https://he01.tci-thaijo.org/index.php/CMMJ-MedCMJ/article/view/110903.