วิยาภรณ์ พ. (2011) “Development of a Model of Non-Formal Education Activities Based on Contemplative Education Approach to Enhance Well-Being of The Elderly”, Journal of Yanasangvorn Research Institute Mahamakut Buddhist University, 2(2), pp. 9–20. Available at: https://so04.tci-thaijo.org/index.php/yri/article/view/174801 (Accessed: 19 May 2024).