Oke, 1990. FAO Food and Nutrition Series, No. 24 Document reference Oke, O. L., 1990. Roots, tubers, plantains and bananas in human nutrition. FAO Food and Nutrition Series, No. 24Web http://www.fao.org/docrep/t0207e/T0207E01.htmCitation key Oke, 1990Datasheets Sweet potato (Ipomoea batatas) tubers