1. http://2ch.net/
2. Ministry of Agriculture, Forestry and Fisheries. http://www.maff.go.jp/j/new_farmer/
3. Ministry of Agriculture, Forestry and Fisheries: Summary of the Basic Plan for Food, Agriculture and Rural Areas. http://www.maff.go.jp/e/pdf/basic_plan_2015.pdf
4. http://lib.ruralnet.or.jp/nrpd/
5. http://www.itmedia.co.jp/promobile/articles/1207/11/news121.html