CONNER, D. S.; NOWAK, A.; BERKENKAMP, J.; FEENSTRA, G. W.; VAN SOELEN KIM, J.; LIQUORI, T.; HAMM, M. W. Value Chains for Sustainable Procurement in Large School Districts: Fostering Partnerships. Journal of Agriculture, Food Systems, and Community Development, Ithaca, NY, USA, v. 1, n. 4, p. 55–68, 2011. DOI: 10.5304/jafscd.2011.014.005. Disponível em: Acesso em: 29 jan. 2023.