1. Chemical composition of monsoon rain water over Bhopal, Madhya Pradesh (India) during 1977 and 1978;Das;Mausam,1981
2. Chemistry of monsoon rain over Calcutta, West Bengal;Das;Mausam,1988
3. Chemical composition of monsoon rains over Calcutta;Handa;Tellus,1969
4. Chemical composition of pre-monsoon showers over Calcutta in 1968;Handa;Sci. Cult.,1970