EBRAHIMI, S. H.; DATTA, M. M.; HEIDARIAN, V.; SIROHI, S. K.; TYAGI, A. K. Effects of Fumaric or Malic Acid and 9, 10 Anthraquinone on Digestibility, Microbial Protein Synthesis, Methane Emission and Performance of Growing Calves. Indian J of Anim Sci 2015, 85 (9), 1000–1005. https://doi.org/10.56093/ijans.v85i9.51739.