Sudip Kumar Kundu and  Charu Singh,  Computation of Flood and Drought Years over the North-West Himalayan Region Using Indian Meteorological Department Rainfall Data.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2019, vol. 151(7). 491 - 494
    [viewed 17 February 2020]. Available from: https://publications.waset.org/pdf/10010550.