1. http://www.cgiar.org/impact/research/rice.html
2. "Rice Growing" http://www.foodmarketexchange.com/datacenter/product/grain/rice/dc_pi_gr_rice03.htm
3. "Where Rice Came From" http://www-plb.ucdavis.edu/labs/rost/Rice/introduction/intro.html
4. "Rice" http://www.historyforkids.org/learn/food/rice.htm
5. “Rice” http://www.infoplease.com/ce6/sci/A0841790.html
6. http://www.hungrymonster.com/FoodFacts/Food_Facts.cfm?Phrase_vch=Rice&fid=5911
7. “Rice: History of Rice” http://www.foodreference.com/html/art-rice-history.html

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