1. A.O.A.C., 1990. Association of official analytical chemistry. Official Methods of Analysis,15th,Vol:1, Washington,D.C.
2. Alcicek, A. and Ozkan K., 1997. Determination of Silage Quality with Physical and Chemical Methods in Silages. Bursa Uladag University, Bursa, Turkey, pp: 241-246.
3. Bulgurlu, Ş.and Ergül, M., 1978. Analyses methods of physical, chemical and biological of feeds. Ege University, Issue Number: 127,176p
4. Blaunt, ARS., Wright, DL., Sprenkel, RK., Hewitt, TD. and Myer, RO., 2006. Forage soybeans for grazing, hay and silage. University of Florida IFAS Extension, SS-AGR-180. http://edis.ifas.ufl.edu/pdffiles/AG/AG18400.pdf.
5. Brown, C., 1999. Soybeans as a forage crop. http://www.omafra.gov.on.ca/english/crops/facts/soybean_forage.htm.