L. R. García Quevedo and R. Oropeza Tena, “Development and evaluation of a checklist to evaluate stage of change in users of Addictive substances”, URP, vol. 6, no. 13, pp. 79–91, Dec. 2009, Accessed: Nov. 13, 2026. [Online]. Available: http://www.revistauaricha.umich.mx/index.php/urp/article/view/475