Siripanich, C., R. Somrongthong, and P. Kanthawee. “Health Status and Behavior Influencing Sleep Quality Among Community-Dwelling Elderly in Chanthaburi Province, Thailand”. Journal of Health Research, vol. 32, no. Suppl.2, Dec. 2018, pp. S151-S158, https://he01.tci-thaijo.org/index.php/jhealthres/article/view/168417.