RAJA, A.; GOPIKRISHNAN, T. Drought Analysis Using the Standardized Precipitation Evapotranspiration Index (SPEI) at Different Time Scales in an Arid Region. Engineering, Technology & Applied Science Research, Greece, v. 12, n. 4, p. 9034–9037, 2022. DOI: 10.48084/etasr.5141. Disponível em: https://etasr.com/index.php/ETASR/article/view/5141. Acesso em: 17 jul. 2024.