“The Model of Holistic Development of the Elderly’s Quality of Life through Sustainable Participation Process: A Case Study of Tha Takiab District, Chacheongsao Province, Thailand ”. 2021. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12 (8): 2930-42. https://www.turcomat.org/index.php/turkbilmat/article/view/4119.