Tsany, M. I. R., W. Suryapratama, and F. M. Suhartati. “Effect of Vitamin A and Magnesium Supplementation on Protein Consumption and Nitrogen Retention of Sheep”. JURNAL ILMIAH PETERNAKAN TERPADU, vol. 12, no. 3, Nov. 2024, pp. 272-86, doi:10.23960/jipt.v12i3.p272-286.