1. AOAC, (1990) Official Methods of Analysis of the Association of the Official Analytical Chemists, (15th edn). AOAC, Washington DC.
2. Bodwell, C. E. and Hopkins, D. T. (1985) Nutritional characteristics of oilseed proteins. In New Protein Foods, eds A. M. Altschul and H. L. Wilcke, Vol. 5, pp. 221–257. Academic Press Inc., Orlando.
3. Bodwell, C. E. (1989) Effect of Collagen on the Nutritional Value of Foods, eds A. M. Pearson, T. R. Dutson and A. J. Bailey, pp. 333–350. Advances in Meat Research 4; Avi. van Nostrand Reinold, New York.
4. Reduction of digestibility of legume proteins by tannins;Bressani;Journal of Plant Foods,1982
5. Campbell, J. A. (1963) Evaluation of Protein Quality. NAS NRC Publication 110, Washington DC.