1. Anderson T N Duke M 2008 Solar Energy Use for Energy Savings in Dairy Processing Plants http://www.ipenz.org.nz/ipenz/Forms/pdfs/treNz14.pdf
2. Arla Foods' Corporate Social Responsibility report 2010 http://www.arla.com/Images/arla.com/PDF/annual-report/2010/UK_2010.pdf
3. Australian Dairy Manufacturing Industry Sustainability Report 2007/08 A Dairy Australia report on behalf of the Dairy Manufacturers Sustainability Council http://dmsc.com.au/wp-content/uploads/2011/03/admsr0708.pdf
4. Beddington J Food, energy, water and the climate: a perfect storm of global events? http://www.bis.gov.uk/assets/bispartners/goscience/docs/p/perfect-storm-paper.pdf