"USDA Food Composition Databases". United States Department of Agriculture, Agricultural Research Service. Release 28. 2015. मूल से 3 मार्च 2018 को पुरालेखित. अभिगमन तिथि 18 August 2018.
web.archive.org
"USDA Food Composition Databases". United States Department of Agriculture, Agricultural Research Service. Release 28. 2015. मूल से 3 मार्च 2018 को पुरालेखित. अभिगमन तिथि 18 August 2018.