Idowu, A., A. O. Aremu, A. Olumide, and A. O. Ogunlaja. “Substance Abuse Among Students in Selected Secondary Schools of an Urban Community of Oyo-State, South West Nigeria: Implication for Policy Action”. African Health Sciences, vol. 18, no. 3, Aug. 2018, pp. 776-85, doi:10.4314/ahs.v18i3.36.