Chanyapornpong, M., N. Khunpluem, A. Wongsuthilert, W. Jaidee, and P. H. Jaidee. “Knowledge and Compliance of Touristaccording to the Law on Smoking-Free Area: Case Study of Bangsaen Beach”. Journal of Public Health Naresuan University, vol. 1, no. 1, Aug. 2019, pp. 25-38, https://he01.tci-thaijo.org/index.php/JPHNU/article/view/212713.