1. American Psychiatric Association: Diagnostic and Statistical Manual of Mental Disorders (DSM-5), Fifth Edition. Arlington, VA, American Psychiatric Association, 2013.
2. WHO/UNDCP Global Initiative on Primary Prevention of Substance Abuse. Substance abuse in Southern Africa : knowledge, attitudes, practices and opportunities for intervention : summary of baseline assessments in South Africa, the United Republic of Tanzania and Zambia / WHO/UNDCP Global Initiative on Primary Prevention of Substance Abuse. World Health Organization, 2003.
3. Alhyas L, Al Ozaibi N, Elarabi H, El-Kashef A, Wanigaratne S, Almarzouqi A, et al. Adolescents' perception of substance use and factors influencing its use: A qualitative study in Abu Dhabi. Journal of the Royal Society of Medicine Open 2015;6(2);1-12.DOI: 10.1177/2054270414567167.
4. Prevalence of substance abuse among senior secondary students In Mainland Local Government, Lagos.Global Journal of Medicine and Public Health;Ani,2014
5. Substance use among secondary school students in an urban setting in Nigeria: Prevalence and associated factors;Oshodi;Afr J Psychiatry (Johannesbg),2010