| 1 | Ancient History of some important cities and towns of South Koshal |
| Researcher: | Mishra, Subha |
| Guide: | Sharma, R K |
| University: | Rani Durgavati Vishwavidyalaya |
| Language: | English |
| 2 | Vizagaptama District & The East India Company 1682-1858: A historical survey |
| Researcher: | Thummapudy, Subha Rao |
| University: | Andhra University |
| Language: | English |