Githiori, J. B. 2004.Evaluation of anthelmintic properties of ethnoveterinary plant preparations used as livestock dewormers by pastoralists and small holder farmers in Kenya. PhD thesis, Swedish University of Agricultural Sciences.
International Food Policy Research Institute (IFPRI), 'IFPRI key facts series: Food and nutrition security', International Food Policy Research Institute (IFPRI), Washington, DC, 2018
CIFOR. 2018. The Water Towers of East Africa: Policies and practices for enhancing co-benefits from joint forest and water conservation. Bogor, Indonesia: Center for International Forestry Research (CIFOR).