Santos, Walkyane Alyne Oliveira, et al. “Soil Erodibility (k) in Section of the Middle Course of the River Basin of the River Poti, Piauí (Brazil)”. Revista Hipótese, vol. 3, no. 1, Feb. 2022, pp. 227-36, https://revistahipotese.editoraiberoamericana.com/revista/article/view/249.