Mohammed, Omar Dheyaa, et al. “A Comparison Effect Of Feeding Barley or Soybean Meal Chemically Treated As A Source Of Undegradable Protein in Milk Production and Composition in Awassi Ewes”. Journal of Agricultural, Environmental and Veterinary Sciences, vol. 4, no. 1, Mar. 2020, pp. 53-43, https://doi.org/10.26389/AJSRP.O151219.