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Nimsuwan N, Sukasame P, Boonrat A. LIFEGUARDING COMPETENCY OF BOAT STAFFS IN MARINE TOURISM ACTIVITIES IN SATUN PROVINCE. JSBA [internet]. 2022 Oct. 31 [cited 2026 Mar. 6];7(10):245-61. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/261702