| 1 | ||
| Researcher: | Mahadev Prasad | |
| University: | Banaras Hindu University | |
| Language: | English | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Narayana Pillai, A S | |
| University: | University of Madras | |
| Language: | English | |
| 3 | ||
| Researcher: | Pandey, K C | |
| University: | University of Madras | |
| Language: | English | |