| 1 | |
| Researcher: | Sastri, Suri Patanjali |
| Guide: | Somayaji, T S N |
| University: | Andhra University |
| Language: | English |
| 2 | Studies on short-term and long-term variations in the lower ionosphere |
| Researcher: | Venkatanaraana, Raju |
| Guide: | Somayaji, T S N |
| University: | Andhra University |
| Language: | English |