Arruda, Francisco de Assis V., et al. “Variation in Body Temperature of Goats and Hairy Sheep in Sobral, Brazil”. Pesquisa Agropecuaria Brasileira, vol. 19, no. 7, Apr. 2014, pp. 915-9, doi:10.1590/S1678-3921.pab1984.v19.15973.