| 1 | ||
| Researcher: | M. Venkateswarlu | |
| Guide: | A. Srinivasa Rao | |
| University: | Koneru Lakshmaiah Education Foundation | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Somu Venkateswarlu | |
| Guide: | J. K. R Sastry | |
| University: | Koneru Lakshmaiah Education Foundation | |
| Language: | English | |
| Shodhganga | ||