KAMBLE, M. V. ., K. . GHOSH, M. . RAJEEVAN, and R. P. . SAMUI. “Drought Monitoring over India through Normalized Difference Vegetation Index (NDVI)”. MAUSAM, vol. 61, no. 4, Oct. 2010, pp. 537-46, doi:10.54302/mausam.v61i4.911.