| 1 | Impact of coal mining of the environmetn: A study of I B velley | |
| Researcher: | Sahu, Ditikrushna | |
| Guide: | Sinha, B K | |
| University: | Sambalpur University | |
| Language: | English | |
| 2 | Impact of coal mining on the environment a study of IB valley | |
| Researcher: | Sahu, Ditikrushna | |
| Guide: | Sinha, B K | |
| University: | Sambalpur University | |
| Language: | English | |
| Shodhganga | ||