พึ่งสุจริต เ., & โรจน์รุ่งสัตย์ พ. (2018). GUIDELINES FOR THE TOURISM ADMINISTRATION DEVELOPMENT OF KAENGKRACHAN DISTRICT IN PHETCHABURI PROVINCE. Sripatum Review of Humanities and Social Sciences, 14(1), 84–93. Retrieved from https://so05.tci-thaijo.org/index.php/spurhs/article/view/116420