References
- Indian Daily Weather Report, 1960.
- British Overseas Weather Supplement, 1960.
- Pakistan Daily Weather Report, 1960.
- Malayan Upper Air Data, 1960
- Kerr, D.E., Propagation of short radio waves.
- Climatological atlas, India Meteorological Department.
- Asnani, G. C., Nature, 214 (5083) (April 1967), 73.