The Using of SPI and SPEI Indices in Evaluating the Effect of Drought on Quality of Surface Water Resources (Case Study: Kashafroud River) Mahtab Helmi; Ali Shahidi Volume 1, Issue 1, May 2023, Pages 83-96 https://doi.org/10.22077/jdcr.2023.6023.1008 View Article PDF 991.34 K