Hoaha, P., Boonjang, S., Chomkaew, K., Kuekli, W., Phetphum, C., & Yangthisan, N. (2019). Effects of secondhand smoke reduction programin the household, Ban Tio Sub-district, Lom SakDistrict, Phetchabun Province. Journal of Public Health and Health Sciences Research, 1(1), 39–52. Retrieved from https://he01.tci-thaijo.org/index.php/JPHNU/article/view/212718