Boonchuay K. GUIDELINES DEVELOPING RECREATION ACTIVITY AND TOURISM OF THE ELDERLY IN SAMUT SAKHON PROVINCE. J.TNSU [internet]. 2022 Aug. 22 [cited 2026 Sep. 22];14(3):71-82. available from: https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/251416