SPIESS, A. The role of environmental degradation in population displacement and conflict in drylands of Sub-Saharan Africa (SSA) with special reference to Northern Nigeria. Sociedade & Natureza, [S. l.], v. 1, n. 1, 2009. Disponível em: https://seer.ufu.br/index.php/sociedadenatureza/article/view/9808. Acesso em: 26 set. 2022.