Boontoch, K. and Nuntaboot, K. (2017) “Happiness, Distress and Mental Health of the Elderly in a Community in the Upper North Region of Thailand”, Journal of the Psychiatric Association of Thailand, 62(3), pp. 257–270. Available at: https://he01.tci-thaijo.org/index.php/JPAT/article/view/100790 (Accessed: 2 May 2024).