1. A Review of Heavy Metal Concentration and Potential Health Implications of Beverages Consumed in Nigeria
2. Nutritional content of popular malt drinks produced in Nigeria;Obuzor;Afric. J. Food Sci.,2010
3. FAO (United Nations Food and Agriculture Organization) FAOSTAT data
http://faostat.fao.org
4. Nigerian brewers dump barley for sorghum in hunt for local substitute
https://www.businessdayonline.com/exclusives/article/nigerian-brewers-dump-barley-sorghum-hunt-local-substitute/
5. Health Topics: Pesticides
http://www.who.int/topics/pesticides/en