“Knowledge on Use and Effects of Drug and Substance Abuse among Youth Aged 13 To 24 Years in Raila Village, Kibera Slum, Nairobi, Kenya”, Int J Cont Res Rev, vol. 9, no. 08, pp. 20575–20601, Aug. 2018, doi: 10.15520/ijcrr/2018/9/08/575.