Reis, Gerson da Silva Costa, and Edilma Fernandes da Silva. “GEOENVIRONMENTAL CHARACTERIZATION OF THE GRAJAUZINHO RIVER WATERSHED, MARANHÃO, BRAZIL”. Terra Livre 2, no. 61 (June 14, 2024): 482–519. Accessed December 5, 2025. https://publicacoes.agb.org.br/terralivre/article/view/3348.