1. Bhardwaj, M., Maekawa, F., Niimura, Y., & Macer, D. (2003). Ethics in food and agriculture: Views from FAO. International Journal of Food Science & Technology, 38, 565–577.
2. de Waal, F. (1996). Good natured. The origins of right and wrong in humans and other animals. Cambridge, MA: Harvard University Press.
3. FAO. (1999). The strategic framework for FAO for 2000–2015. Rome: FAO/WHO.
http://www.fao.org/strategicframework/
. Accessed 26 Mar 2015.
4. FAO ethics series;FAO,2001
5. Goodland, R., & Anhang, J. (2009). Livestock and climate change. What if the key actors in climate change are… cows, pigs and chickens. Worldwatch, 22(6),10–19.