TOLON, Y.B., BARACHO, M. dos S., NÄÄS, I. de A., CALDARA, F.R., GARCIA, R.G. and SILVA, W.T. 2013. EVALUATING FARROWING REARING AMBIENT USING SOWS’ VOCALIZATION. Revista Brasileira de Engenharia de Biossistemas. 7, 3 (Dec. 2013), 124–133. DOI:https://doi.org/10.18011/bioeng2013v7n3p124-133.