| 1 | ||
| Researcher: | Subbarao, B V | |
| Guide: | Sambasivarao, K V | |
| University: | Acharya Nagarjuna University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Rao , Srinivasa Pokuri | |
| Guide: | D Nagaraju | |
| University: | Acharya Nagarjuna University, Guntur | |
| Language: | English | |
| Shodhganga | ||