Beyene , W. A., Leon , B., Anders , D. ., & Tefera, . B. (2020). Chemical and microbiological hazards of Khat (Catha edulis) from field to chewing in Ethiopia. GSC Biological and Pharmaceutical Sciences, 11(1), 024–035. https://doi.org/10.30574/gscbps.2020.11.1.0038