Utama A, Hadi MP, Nurjani E. Geographic Information Systems Application to Drought Distribution Identification with Standardized Precipitation Index (SPI) Method in Trenggalek Regency. INTENSIF: J. Ilm. Penelit. dan Penerap. Tek. Sist. Inf. [Internet]. 2021 Aug. 8 [cited 2024 Dec. 28];5(2):266-78. Available from: https://ojs.unpkediri.ac.id/index.php/intensif/article/view/15645