1. http://faostat3.fao.org/browse/Q/*/E
2. Potato Origin and Production
3. http://www.nass.usda.gov/Publications/Todays_Reports/reports/pots0914.pdf
4. Adler , S. Honkapää , K. Saarela , M. Slizyte , R. Sterten , H. Vikman , M. Løes , A.-K.; Bioforsk-Norwegian Institute for Agricultural and Environmental Research http://www.bioforsk.no/ikbViewer/Content/110773/Bioforsk%20RAPPORT%209%20(82).pdf