นักการเรียนบานชื่น. “The Models for the Promotion and Prevention of the Mental Health Problems Based on the Principle of the Four Vuddhidhammas for the Older Persons in Samut Songkhram Province”. Journal of Yanasangvorn Research Institute Mahamakut Buddhist University 9, no. 2 (December 22, 2018): 24-36. Accessed April 6, 2020. https://so04.tci-thaijo.org/index.php/yri/article/view/173023.