MOHAMMED SALISU, A.; SHABRI, A. A Hybrid Wavelet-Arima Model for Standardized Precipitation Index Drought Forecasting. MATEMATIKA, [S. l.], v. 36, n. 2, p. 141–156, 2020. DOI: 10.11113/matematika.v36.n2.1152. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/1152. Acesso em: 21 feb. 2024.