1. Oxalate determination: Analytical problems encountered with certain plant species;Abeza;J. Assoc. Off. Agric. Chem.,1968
2. Official Methods of Analysis;AOAC,1975
3. Official Methods of Analysis;AOAC,1983
4. Phytic acid and zinc bioavailability in human nutrition;Erdman;J. Agric. Food Chem.,1979
5. Amino acid content of Foods and Biological Data on Proteins;FAO,1970