By Rao B. Hanumantha   Sridhar V.   Rakesh R.R.   Singh D.N.   Narayan P.K.   Wattal P.K.   in International Journal of Environment and Waste Management

ISSN:1478-9876|12|3|318-339

Inderscience Publishers‎(2013)‎

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By Narayan P. K.   in Applied Economics Letters

ISSN:1466-4291|10|11|721-723

Routledge Ltd‎(2003)‎

Access to resources Favorite 6.1204057