Islachin H., Jhon, et al. “Frequency in a Slaughterhouse of Seropositive Pigs to Toxoplasma Gondii from Non-Technical Pig Farms”. Revista De Investigaciones Veterinarias Del Perú, vol. 27, no. 3, Oct. 2016, pp. 561-4, https://doi.org/10.15381/rivep.v27i3.11991.