Ababor, Sabit, et al. “What Can Research Evidence Tell Us about Effect of Khat on Health and Socio-Economy? Rapid Evidence Review”. Ethiopian Journal of Public Health and Nutrition (EJPHN), vol. 5, no. 2, July 2022, pp. 146-50, https://ejphn.ephi.gov.et/index.php/ejphn/article/view/61.