Chankua, Raweewan, and Khemruthai Boonwan. 2022. “Speech Act of Invitation for Community-Based Tourism in Foodwork”. Journal of Humanities and Social Sciences Nakhon Pathom Rajabhat University 12 (1). ์์Nakhon Pathom,Thailand:1-16. https://so07.tci-thaijo.org/index.php/HUSO-J/article/view/1381.