| 1 | |
| Researcher: | Sarkar, Prasanta Kumar |
| Guide: | Ghosh, S N |
| University: | University of Calcutta |
| Language: | English |
| 2 | Collision frequency and Temperature in the F- Region of the Ionosphere |
| Researcher: | Venkatachari, R |
| University: | Andhra University |
| Language: | English |