1. Official methods of analysis,1980
2. Laboratory methods of evaluating feeding value of herbage;Barnes,1973
3. Goering, H. K. and P. J. Van Soest. 1970. Forage fiber analysis. Agric. Handbook No. 379. Agric. Res. Serv., USDA, Washington, DC.
4. Applied multivariate statistical analysis;Johnson,1982
5. Near infrared reflectance spectroscopy analysis of forage quality in four legume species;Marten;Crop Sci.,1984