1. USDA (United States Department of Agriculture) World Agricultural Production http://ffas.usda.gov/wap/circular/2008/08-09/toc.asp
2. Conab (Companhia Nacional de Abastecimento) Quarto Levantamento de Avaliação da Safra 2006/2007 http://www.conab.gov.br/conab-web/index.pdf
3. CAST, Mycotoxins: risks in plant, animal and human systems Task Force Report 139 2003
4. A review of sorghum grain moulds;Williams;Trop Pest Manag,1981