@incollection{,
	
					
					
					53599555CD77724FA218FD3C92FA06F3
				,
	author={{Dr. SumeetGupta} and {Dr. Manvinder SinghPahwa} and {Mr.AnkurGupta} and {University of Petroleum and Energy Studies, Dehradun}},
	journal={{Global Journal of Management and Business Research}},
	journal={{GJMBR}}2249-45880975-585310.34257/GJMBR,
	address={Cambridge, United States},
	publisher={Global Journals Organisation}134912
}

@book{b0,
	
	
		,
	author={{
			Gwc Coal
		} and {
			Handbook
		}}
		
		,
	title={{ASTM & ISO Standards & others}}
				
	

}

@book{b1,
	
	
		,
	title={{Eurostat year book}}
		
			,
	year={2008}
		
	

}