| 1 | ||
| Researcher: | Chandrayudu, S. | |
| Guide: | Reddy, N. Subbarami | |
| University: | Sri Krishnadevaraya University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | C. Chandrayudu | |
| Guide: | Dr. G. Dhamodharnaidu | |
| University: | Sri Venkateswara University | |
| Language: | English | |
| Shodhganga | ||