1. AOAC (1989) Official Methods of Analysis. Horwitz W (ed), Association of Official Analytical Chemists, Washington, DC
2. Biemer P (1989) Personal communication. Department of Experimental Statistics, College of Agriculture and Home Economics, New Mexico State University, Las Cruces, NM.
3. CON (1976) Committee on Nutrition, American Academy of Pediatrics. Pediatrics 57(2): 278
4. Davies OL (1963) Design and Analysis of Industrial Experiments. New York: Hafner Publishing Co.
5. Del Valle FR (1982) Industry-government nutritional improvement programs: An experience in Mexico. Food Technol 36: 120