Changpetch, P., and D. Haughton. “Sociological Mechanisms Underlying Alcohol, Tobacco, and Gambling: A Causal Mediation Analysis”. Thailand Statistician, vol. 16, no. 1, Jan. 2018, pp. 56-63, https://ph02.tci-thaijo.org/index.php/thaistat/article/view/110208.