The Food Acquisition National Program and family farming at Ribeira Valley, Paraná State, Brazil. Sustainability in Debate, [S. l.], v. 8, n. 1, p. 67–79, 2017. DOI: 10.18472/SustDeb.v8n1.2017.18462. Disponível em: https://periodicostestes.bce.unb.br/index.php/sust/article/view/16459. Acesso em: 17 apr. 2025.