Hirunthet, W. “Thai Tourist’s Opinion Toward Level of Problem Effecting Tourism in Talad Noi Community Samphanthawong District, B”. Journal of Humanities and Social Sciences, Rajapruk University, vol. 8, no. 2, Aug. 2022, pp. 66-81, https://so03.tci-thaijo.org/index.php/rpu/article/view/262969.