J.F, A. . A Review of Some Methods used for Drought Identification and Analysis. Africa Environmental Review Journal, [S. l.], v. 2, n. 1, 2022. DOI: 10.2200/aerj.v2i1.28. Disponível em: http://41.89.164.28/index.php/aerj/article/view/28. Acesso em: 15 jan. 2025.