| 1 | ||
| Researcher: | D.Sudhakar | |
| Guide: | Prof. P.R. Parthasarathy | |
| University: | Sri Venkateswara University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | D . Sudhakar | |
| Guide: | Prof . C . Venkata Rao | |
| University: | Sri Venkateswara University | |
| Language: | English | |
| Shodhganga | ||