พึ่งสุจริต เมธี, and โรจน์รุ่งสัตย์ พิมพ์ระวี. “GUIDELINES FOR THE TOURISM ADMINISTRATION DEVELOPMENT OF KAENGKRACHAN DISTRICT IN PHETCHABURI PROVINCE”. Sripatum Review of Humanities and Social Sciences 14, no. 1 (March 22, 2018): 84–93. Accessed May 18, 2024. https://so05.tci-thaijo.org/index.php/spurhs/article/view/116420.