Impact of the pandemic on the activities of family farmers at the municipal fair in Cascavel – Paraná, Brazil. Research, Society and Development, [S. l.], v. 10, n. 9, p. e29310918074, 2021. DOI: 10.33448/rsd-v10i9.18074. Disponível em: https://rsdjournal.org/rsd/article/view/18074. Acesso em: 5 dec. 2025.