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Journal Article Food and Agricultural Organization of the United Nations. Get access Food and Agricultural Organization of the United Nations. Report No. 25: Seminar on Problems of Food and Nutrition, Africa South of the Sahara.. W T Wu Leung W T Wu Leung Search for other works by this author on: Oxford Academic Google Scholar Journal of Association of Official Agricultural Chemists, Volume 45, Issue 2, 1 May 1962, Pages 508–509, https://doi.org/10.1093/jaoac/45.2.508a Published: 01 February 2020
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Wendy Leung (1962) studied this question.
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