Ullah, M., Islam, K., Akbar, M., Khaleduzzaman, A., & Debi, M. (2012). Effect Of Levels And Sources Of Protein On The Performance And Nutrient Digestibility In Black Bengal Goat. Bangladesh Journal of Animal Science, 38(1-2), 53–60. https://doi.org/10.3329/bjas.v38i1-2.9912