Costa, C.A.F. et al. 1991. Effects of housing, type of pasture and roughage supplementation on nematode parasitism in goats. Pesquisa Agropecuaria Brasileira. 26, 4 (Apr. 1991), 521–533. DOI:https://doi.org/10.1590/S1678-3921.pab1991.v26.3373.