| 1 | Investigations on Ganga river to determine biological indicators of water quality |
| 2 | |
| Language: | English |
| 3 | |
| 4 | Ecology of river Varuna at Varanasi with special reference to bacterial pollution |
| Language: | English |
| 5 | |
| 6 | |
| Language: | English |
| 7 | Studies on limnology and phytoplankton production of some tropical freshwater ecosystems |