Assessment and Management of Air Quality for an Opencast Coal Mining Area

Tekijä Chaulya, S. K., Chaulya, S. K.
Julkaistu 2003

The Problem of Displaced People: A Study in the Coal Mines of Brajraj Nagar, Sambalpur, Orissa

Tekijä Panda, P., Panda, P.
Julkaistu 1989