1. Association of Official Agricultural Chemists, Official Methods of Analysis of the AOAC 53 edn, The Association, Washington, D.C., 1970.
2. Methods in Food Analysis 2nd edn, Academic Press, New York, 1970.
3. American Association of Cereal Chemists, Cereal Laboratory Methods of the AACC 7th edn, St Paul, Minn., 1962.
4. ; Food Composition Table for Use in Ethiopia, Ministry of Public Health, Addis Ababa, Ethiopia, 1968.