Thaveesri, Monthira B., Rungpetch C. Sakulbamrungsil, Nopdol Thongnopnua, Anuchai Theeraroungchaisri, Cha-Oncin Sooksriwong, and Wirat Tongrod. “Willingness to Smoking among College Students: a Modification of Theory of Planned Behavior”. Journal of Health Research 26, no. 6 (May 3, 2017): 297–303. accessed September 15, 2026. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/85486.