P. Y. ZHAO, T. S. LI, and I. H. KIM, “Impact of dietary enzyme complex on growth performance, nutrient digestibility and fecal noxious gas emissions in growing pigs”, Indian J of Anim Sci, vol. 86, no. 9, pp. 1041–1045, Sep. 2016, doi: 10.56093/ijans.v86i9.61578.