| 1 | ||
| Researcher: | Pragasam, S | |
| Guide: | Natarajan, A | |
| University: | Bharathidasan University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Pragasam, A | |
| Guide: | Kannabiran, B | |
| University: | Pondicherry University | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Pragasam, A S | |
| University: | University of Madras | |
| Language: | Tamil | |
| 4 | ||
| Researcher: | Pragasam V | |
| Guide: | Varalakshmi P | |
| University: | University of Madras | |
| Language: | English | |
| Shodhganga | ||