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"Sweet potato production in 2016". Statistics Division (FAOSTAT). World Regions / Production Quantity. Food and Agriculture Organization of the United Nations. 2017. मूल से 11 मई 2017 को पुरालेखित. अभिगमन तिथि 25 April 2018.
"Sweet potato production in 2016". Statistics Division (FAOSTAT). World Regions / Production Quantity. Food and Agriculture Organization of the United Nations. 2017. मूल से 11 मई 2017 को पुरालेखित. अभिगमन तिथि 25 April 2018.