PALMA E SILVA AA, Moraes R de CM, Barbosa CL. River transportation as an alternative for urban mobility in the metropolitan region of Belém/ PA. REEC [Internet]. 2019 Sep. 18 [cited 2026 Oct. 7];15(2):64-7. Available from: https://teste.revistas.ufg.br/reec/article/view/52809