Sirirat Buaphan และผู้แต่งคนอื่นๆ. (2011) Optimizing the Availability of Soluble Protein and Carbohydrate on Ruminal Fermentation, Microbial Protein Synthesis and Milk Production of Dairy Cows Fed Low Quality Roughage /. Khon Kaen University,:ม.ป.ท.Sirirat Buaphan และผู้แต่งคนอื่นๆ. 2011. Optimizing the Availability of Soluble Protein and Carbohydrate on Ruminal Fermentation, Microbial Protein Synthesis and Milk Production of Dairy Cows Fed Low Quality Roughage /. ม.ป.ท.:Khon Kaen University,;Sirirat Buaphan และผู้แต่งคนอื่นๆ. Optimizing the Availability of Soluble Protein and Carbohydrate on Ruminal Fermentation, Microbial Protein Synthesis and Milk Production of Dairy Cows Fed Low Quality Roughage /. ม.ป.ท.:Khon Kaen University, 2011. Print.