Günlü, Aykut, and Aydoğan Aykut Ceyhan. “Investigating Adolescents’ Behaviors on the Internet and Problematic Internet Usage”. Addicta: The Turkish Journal on Addictions, vol. 4, no. 1, Apr. 2017, pp. 75-117, https://doi.org/10.15805/addicta.2017.4.1.0016.