1. www.fao.org – United Nations Food and Agriculture Organization.
2. http://www1.agric.gov.ab.ca – Alberta Agriculture, Food and Rural Development. Introduction to Grain Contracting.
3. Grains and Oilseeds: Handling, Marketing, Processing;Canadian International Grains Institute,1993
4. Barley Chemistry and Technology,1993
5. Vertical integration in the malting barley industry;Boland;Review of Agricultural Economics,2006