Sigdel, M, and M Ikeda. “Spatial and Temporal Analysis of Drought in Nepal Using Standardized Precipitation Index and Its Relationship With Climate Indices”. Journal of Hydrology and Meteorology 7, no. 1 (December 23, 2011): 59–74. Accessed December 26, 2024. https://nepjol.info./index.php/JHM/article/view/5617.