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

অনুযায়ী Chaulya, S. K., Chaulya, S. K.
প্রকাশিত 2003

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

অনুযায়ী Panda, P., Panda, P.
প্রকাশিত 1989