1. Monsoon circulation from observations of natural radon;Rama;Earth Planet. Sci. Letters,1969
2. An attempt to trace the monsoon flow using natural radon;Rama;Indian J. Met. Geophys.,1968
3. Possible radon concentration over the Indian Sea during the southwest monsoon season on the basis of climatic features of the area and utilization of the radon results for identifying air masses;Desai;Indian J. Met. Geophys.,1969
4. Interaction of the summer monsoon current with water surface over the Arabian Sea;Desai;Indian J. Met. Geophys.,1968
5. Y.P. Rao and K.M. Ramamurthi, Indian Met. Dept. Forecasting Manual — Part I, Climatology of India and neighbourhood, 2. Climate of India, pp. 1–17 and charts.