M. B. Thaveesri, R. C. Sakulbamrungsil, N. Thongnopnua, A. Theeraroungchaisri, C.-O. Sooksriwong, and W. Tongrod, “Willingness to Smoking among College Students: a Modification of Theory of Planned Behavior”, J Health Res, vol. 26, no. 6, pp. 297–303, May 2017.