Theuri, Joseph, and David Nzioka Mutisya. “Alcohol and Drug Abuse As Ecological Predictors of Risk Taking Behaviour Among Secondary School Students in Kajiado North Sub-County, Kajiado County, Kenya”. African Journal of Empirical Research, vol. 2, no. 1&2, Feb. 2021, pp. 50-55, doi:10.51867/ajer.v2i1.9.