Sangkaew, Pittaya, Mondha Kengganpanich, and Tharadol Kengganpanich. “An Assessment of Smoking Behavior among Workers in A Public Hospital in Bangkok Metropolitan”. Thai Journal of Health Education 38, no. 2 (February 26, 2019): 4–16. accessed September 11, 2026. https://he01.tci-thaijo.org/index.php/muhed/article/view/174729.