CONAB (Companhia Nacional de Abastecimento). 2010. Production costs in agriculture: the method used by Conab. Conab; Brasília, Distrito Federal:
Ferreira Filho JBS, Alves LRA, Villar PM. 2009. Study of competitiveness of cotton production in Brazil and USA – crop of 2003/04. Rev Econ Sociol Rural 47:59–88.
Galal ESE, Metawib HRM, Aboul-Nagab AM, Abdel-Aziz AI. 1996. Performance of and factors affecting the small-holder sheep production system in Egypt. Small Rumin Res 19:97–102.
Heaton RJ, Randerson PF, Slater FM. 1999. The economics of growing short rotation coppice in the uplands of mid-Wales and an economic comparison with sheep production. Biomass Bioenergy 17:59–71.
Kilkenny JB, Read JL. 1974. British sheep production economics. Livest Prod Sci 1:165–178.
Kumm KI. 2009. Profitable Swedish lamb production by economies of scale. Small Rumin Res 81:63–69.
Leontief W. 1936. Quantitative input and output relations in the economic system of the United States. Rev Econ Stat 18:105–125.
Matsunaga M, Bemelmans PF, de Toledo PEN, Dulley RD, Okawa H, Pedroso IA. 1976. Cost calculation method utilized by IEA. Agric Sao Paulo 23:123–139.
Milán MJ, Arnalte E, Caja G. 2003. Economic profitability and typology of Ripollesa breed sheep farms in Spain. Small Rumin Res 49:97–105.
Morris ST. 2009. Economics of sheep production. Small Rumin Res 86:59–62.
Nix J. 1988. The economics of sheep production. Br Vet J 144:426–433.
Niznikowski R, Strzelec E, Popielarczyk D. 2006. Economics and profitability of sheep and goat production under new support regimes and market conditions in Central and Eastern Europe. Small Rumin Res 62:159–165.
Passos CRM, Nogami O. 2003. Princípios de economia. Pioneira; São Paulo, São Paulo, Brazil:
Pérez JP, Gil JM, Sierra I. 2007. Technical efficiency of meat sheep production systems in Spain. Small Rumin Res 69:237–241.
Plaxico JS, Tweeten LG. 1963. Representative farms for policy and projection research. J Farm Econ 45:1458–1465.
Reis RP, Medeiros AL, Monteiro LA. 2001. Custos de produção da atividade leiteira na região sul de Minas Gerais. Org Rurais e Agroindustriais 3:45–52.
Richardson JW, Outlaw JL, Knapek GM, Raulston JM, Herbst BK, Fumasi RJ, Anderson DP, Bryant HL, Klose SL, Zimmel P. 2007. Representative farms economic outlook for the December 2007 FAPRI/AFPC baseline. Agricultural and Food Policy Center, Working Paper 07-3. Texas A&M University; Texas, USA:
http://purl.umn.edu/37977Accessed September 26, 2013
Sorio A, Rasi L. 2010. Sheep husbandry and clandestine slaughter: a fiscal problem or a market solution? Rev Pol Agric 19:71–83.
Souza FAA, Lopes MA, Demeu FA. 2008. Current scenario of Sheep Raising in the State of São Paulo. Rev Ceres 55:384–388.
de Souza UR, Braga MJ. 2007. Diversificacao concentrica na cooperativa agropecuaria: um estudo de caso da COMIGO. Gest Prod 14:169–179.
Tzouramani I, Sintori A, Liontakis A, Karanikolas P, Alexopoulos G. 2011. An assessment of the economic performance of organic dairy sheep farming in Greece. Livest Sci 141:136–142.
UNICETEX (Center for Innovation, Technology and Extension of FZEA/USP FZEA/USP). 2012a. Monthly price indicator for lamb production in São Paulo State. 110th edUNICETEX; Pirassununga, Sao Paulo, Brazil:
UNICETEX (Center for Innovation, Technology and Extension of FZEA/USP FZEA/USP). 2012b. Monthly price indicator for lamb production in São Paulo State. 111th edUNICETEX; Pirassununga, Sao Paulo, Brazil:
UNICETEX (Center for Innovation, Technology and Extension of FZEA/USP FZEA/USP). 2012c. Monthly price indicator for lamb production in São Paulo State. 113th edUNICETEX; Pirassununga, Sao Paulo, Brazil:
UNICETEX (Center for Innovation, Technology and Extension of FZEA/USP). 2012d. Monthly price indicator for lamb production in São Paulo State. 114th edUNICETEX; Pirassununga, Sao Paulo, Brazil:
Vereijken P. 1999. Manual for Prototyping Integrated and Ecological Arable Farming Systems (I/EAFS) in Interaction with Pilot Farms. AB-DLO; Wageningen, The Netherlands: