O P Singh

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https://dspace.nehu.ac.in/handle/1/956

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Minerals and mining in India and its environmental implications
(2010-08-21T08:16:51Z) Singh, O P
Air pollution- types, sources and abatement
(2010-08-20T07:34:16Z) Singh, O P
System of environmental and economic accounts (SEEA)
(2010-08-19T11:28:55Z) Singh, O P
Acid mine drainage: a serious environmental problem of the mining areas
(2010-08-18T06:40:17Z) Singh, O P
Regulations for management of mining environment in India
(2010-08-18T06:32:32Z) Singh, O P