1. Abdelbagi, A., Elmahi, A., & Osman, G. (2000). Chlorinated hydrocarbon insecticides residues in the Sudanese soil of limited or pesticide use. Arab Journal of Plant Protection, 18, 35–39.
2. Abdelbagi, O., Elmahi, A., & Osman, G. (2003). Organochlorine insecticides residues in Sudanese soil of intensive pesticide use and in surface soil of Qurashi pesticide store. U. of K. Journal of Agricultural Science, 11, 59–68.
3. AOAC-International: Association of Official Analytical Chemists. (1996). Official methods of analysis of the ed. Anonymous, Washington, USA.
4. Elbashir, A., Abdelbagi, A., Hammad, A., Elzorgani, G., Laing, D.: Levels of organochlorine pesticides in the blood of people living in areas of intensive pesticide use in Sudan. Environmental Monitoring and Assessment, 187(3).
5. FAOSTAT: crops [Internet]. Rome: The Food and Agriculture Organization of the United Nations. 1961—[updated 2017; cited 2020 Jan 22]. Available from: http://www.fao.org/faostat/en/#data/QC