1. Banerjee AK, Raman CRV. 1976. One hundred years of southwest monsoon rainfall over India. Science Report No. 76/6. Meteorological Office: Pune; 7.
2. Pre-monsoon western disturbances in relation to monsoon rainfall, its advancement over NW India and their trends;Das;Current Science,2002
3. On the decreasing frequency of monsoon depressions over the Indian region;Dash;Current Science,2004
4. Changes in the pattern of distribution of southwest monsoon rainfall over India associated with sunspots;Jagannathan;Monthly Weather Review,1973