Ulloa, F. ., M. . Villegas, C. . Tejeda C, and M. Salgado. “Experimental Assessment of the Efficacy of Copper Ion Treatment Against Penicillin G Contained in UHT Milk and PBS”. Austral Journal of Veterinary Sciences, vol. 56, no. 1, Jan. 2024, pp. 55-58, doi:10.4206/ajvs.561.07.