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.