HUNOLD, C.; SORUNMU, Y.; LINDY, R.; SPATARI, S.; GURIAN, P. L. Is Urban Agriculture Financially Sustainable? An Exploratory Study of Small-Scale Market Farming in Philadelphia, Pennsylvania. Journal of Agriculture, Food Systems, and Community Development, Ithaca, NY, USA, v. 7, n. 2, p. 51–67, 2017. DOI: 10.5304/jafscd.2017.072.012. Disponível em: https://www.foodsystemsjournal.org/index.php/fsj/article/view/509. Acesso em: 22 may. 2022.