Suphim, Bunliang, Phasit Sirited, and Sitthisak Tikham. “Secondhand smoke: health impact and control measures”. Journal of Health Policy, Law and Administration 8, no. 1 (October 28, 2021): 95–112. accessed October 4, 2026. https://so05.tci-thaijo.org/index.php/journal_law/article/view/254487.