Naksomboon, T., M. Kengganpanich, T. Kengganpanich, and S. Benjakul. “The Effectiveness of Life Skills Development Program for Smoking Prevention among 5th Grade Students In Bangkok Metropolis”. Thai Journal of Health Education, vol. 42, no. 2, Nov. 2019, pp. 184-9, https://he01.tci-thaijo.org/index.php/muhed/article/view/225825.