Oliveira, Ederlon R., et al. “Housing, Pasture Management and Roughage Supplementation on the Pre-Weaning Growth of Goats in the Tropical Northeast of Brazil”. Pesquisa Agropecuaria Brasileira, vol. 17, no. 9, Apr. 2014, pp. 1389-97, doi:10.1590/S1678-3921.pab1982.v17.16301.