Costa, Gustavo Henrique Nogueira, et al. “Frequence of Antibodies for Neospora Caninum and Toxoplasma Gondii in Cattle, São Paulo and Minas Gerais States”. Semina: Ciências Agrárias, vol. 22, no. 1, Aug. 2001, pp. 61-66, doi:10.5433/1679-0359.2001v22n1p61.