Marygoretty, E. and Adhiambo, W.M. 2021. The Prevalence, Causes And Effects Of Drug Use And Abuse On Performance Indicators Among Secondary School Students In Teso South Constituency, Kenya. European Scientific Journal, ESJ. 17, 15 (May 2021), 111. DOI:https://doi.org/10.19044/esj.2021.v17n15p111.