Ungcharoen, R., A. Seeherunwong, R. Kongsakon, and D. Sujirarat. “Beliefs and Attitudes toward Smoking Cessation among Vocational Students with Nicotine Addiction and Non-Addiction”. Nursing Science Journal of Thailand, vol. 32, no. 4, Mar. 2020, pp. 52-62, https://he02.tci-thaijo.org/index.php/ns/article/view/240119.