| 1 | |
| Researcher: | Narayana Reddy, Vembuluru |
| Guide: | Munirathnam Reddy, A |
| University: | Sri Venkateswara University |
| Language: | English |
| 2 | |
| Researcher: | Narayana, Reddy V |
| Guide: | Reddy, V L NReddy, A Munirathnam |
| University: | Sri Venkateswara University |
| Language: | English |