Semerci, Remziye, et al. “The Role of Perceived Social Competence on Cigarette and Alcohol Usage Among Faculty of Health Sciences Students”. Addicta: The Turkish Journal on Addictions, vol. 5, no. 1, Aug. 2017, pp. 67-80, https://doi.org/10.15805/addicta.2018.5.1.0020.