Chairatana, P., S. Maiket, and P. Thongkam. “Marketing Strategies for Tourism in Koh Kret District Nonthaburi Province”,. Journal of the Association of Researchers, vol. 29, no. 4, Jan. 2025, pp. 378-93, https://so04.tci-thaijo.org/index.php/jar/article/view/275925.