J. S. Serrato-Corona, T. I. Minor-Hinojosa, H. D. Garcia-Sanchez, and A. Minor-Hinojosa, “Effects of Two Levels of Protein Supplementation on Intake, Apparent Digestibility and Ammonia Nitrogen in Growing Goats Fed Ammoniated Crop By-Products”, Pak. J. Nutr., vol. 15, no. 4, pp. 319–323, Mar. 2016, doi: 10.3923/pjn.2016.319.323.