The landscape of the urban perimeter of the Grajaú river (Maranhão) analyzed from visual quality indicators. Research, Society and Development, [S. l.], v. 8, n. 5, p. e2685978, 2019. DOI: 10.33448/rsd-v8i5.978. Disponível em: https://rsdjournal.org/rsd/article/view/978. Acesso em: 5 dec. 2025.