1. FAOSTAThttp://www.fao.org/faostat/en/#data/QC
2. Potato Biology and Biotechnology: Advances and Perspectives;Vreugdenhil,2011
3. Potato and Water Resources; Hidden Treasure: International Year of the Potatohttp://www.potato2008.org/en/potato/water.html
4. Agricultural Research for Development: Potato Facts and Figureshttp://cipotato.org/potato/facts