Chuaybamrung, P., Nunklam, D., Pairat, Treesap, D. and onkong, S. 2022. THE PROMOTIONAL ACTIVITIES TO THE HAPPINESS OF ELDERLY IN AREA OF NA PHO SUB-DISTRICT, THUNG SONG DISTRICT, NAKHON SI THAMMARAT PROVINCE. Journal of MCU Nakhondhat. 9, 5 (May 2022), 212–225.