| 1 | |
| Researcher: | Sood, Mohan Lal |
| University: | Punjab Agricultural University |
| Language: | English |
| 2 | |
| Researcher: | Lahiri, Murari Mohan |
| University: | University of Calcutta |
| Language: | English |
| 3 | |
| Researcher: | Mohan Rao, V K |
| University: | University of Lucknow |
| Language: | English |