References
^ (2012). Handbook of Potato Production, Improvement, and Post Harvest Management ISBN 9781560222729 (revised Nov 2013)^ Jai Gopal, S. M. Paul Khurana (2012). Handbook of Potato Production, Improvement, and Postharvest, [[Haworth Press]]. Wiki. ISBN 9781560222729 (revised May 2012)^ Jai GopalHandbook of Potato Production, Improvement, And Postharvest Management, CRC Press. Amazon. ISBN 9781560222729 (revised Nov 2014)
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