| 1 | Ecological studies of Lichens with special reference to air-pollution monitoring | |
| 2 | Ecological studies of Lichens with special reference to air-pollution monitoring | |
| Language: | English | |
| 3 | ||
| Shodhganga | ||
| 4 | Environmental pollution and management in towns of Sonbhadra District, U.P. | |
| Language: | English | |
| 5 | Microcomputer based water quality monitoring & control system | |
| 6 | ||
| Language: | English | |
| 7 | ||
| 8 | ||
| Language: | English | |