Camellia, V.; Fitri, F. I.; Husada, M. S.; Aldiansyah, D.; Ichwan, M.; Khairunnisa, K.; Harahap, F. D. Sociological and Psychological Factors on Prohibited Substances Abuse in Rehabilitation Centre of Medan City, Indonesia. Open Access Maced J Med Sci 2019, 7, 4137-4142.