| 1 | |
| Researcher: | Radha, L |
| Guide: | Anand, N |
| University: | University of Madras |
| Language: | English |
| 2 | Growth and distribution of Eichhornia crassipes (Mart.) Solms. and Spirodela polyrrhiza (L.) schield |
| Researcher: | Das, Radha Raman |
| University: | Banaras Hindu University |
| Language: | English |