ลวรัตนากร บ. “Prevalence and Associated Factor of Depression Among the Elderlyin Kantharalak Municipality, Sisaket Province”. Region 11 Medical Journal, vol. 30, no. 2, June 2016, pp. 13-23, https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/177869.