Phumsi C. Development of integrated marketing communication strategy for building perception of eco-tourism value in Ratchaburi Province. JMSNPRU [internet]. 2019 Jan. 13 [cited 2026 Aug. 28];5(2):1-14. available from: https://so03.tci-thaijo.org/index.php/JMSNPRU/article/view/166014