1. AOAC 1970 Official Methods of Analysis (11th edn). Association of Official Analytical Chemists, Washington, DC, p 154.
2. 1974 Alpha-amylase. In: Methods of Enzymatic Analysis (2nd edn), Vol. 1, eds & . Academic Press, New York, p 432.
3. 1980 The nutritional role of polyphenols in beans. In: Polyphenols in Cereals and Legumes, ed International Development Research Center, Ottawa, pp 61–68.
4. Analysis of condensed tannins using acidified vanillin
5. Method for Estimation of Tannin in Grain Sorghum
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