Nimnatipun, Sumonratree. “THE PARTICIPANTING BEHAVIORS OF RECREATION ACTIVITIES UNDER THE CIRCUMSTANCES OF COVID-19 OF THE AGING SOCIETY IN NAKHON NAYOK PROVINCE”. Journal of Liberal Art of Rajamangala University of Technology Suvarnabhumi 6, no. 1 (April 24, 2024): 119–133. accessed September 21, 2026. https://so03.tci-thaijo.org/index.php/art/article/view/273197.