Wiyaporn, Kittipat. “Development of a Model of Non-Formal Education Activities Based on Contemplative Education Approach to Enhance Well-Being of the Elderly”. Scholar: Human Sciences 3, no. 2 (October 16, 2014). Accessed July 21, 2024. http://www.assumptionjournal.au.edu/index.php/Scholar/article/view/223.