Thiratanachaiyakul, Dr.Kanyarat. “The The Influence of Social Support and Quality of Life on Happiness of Elderly People in Bangkok, Pathumthani Province, Nonthaburi Province and Samutprakan province.: The Influence of Social Support and Quality of Life on Happiness of Elderly People in Bangkok, Pathum Thani, Nonthaburi and Samut Prakan”. Journal of Business Administration The Association of Private Higher Education Institutions of Thailand 10, no. 1 (June 6, 2021): 30–48. Accessed February 1, 2023. https://so02.tci-thaijo.org/index.php/apheitvu/article/view/239908.