@incollection{,
	
					
					
					AF972B3A7C8C7D131FB5A9F2C94DEC42
				,
	author={{Dr. VidaVarahrami} and {University of Tehran, Tehran, Iran.}},
	journal={{Global Journal of Management and Business Research}},
	journal={{GJMBR}}2249-45880975-585310.34257/GJMBR,
	address={Cambridge, United States},
	publisher={Global Journals Organisation}12107578
}

@incollection{b0,
	
	
		,
	title={{}}
		,
	author={{
			KCutberson
		} and {
			DNitzsche
		}}
		
		
	
	
		,
	journal={{Quantitative Financial Economics}}
		
	
	,
	note={Second edition 2}

}

@incollection{b1,
	
	
		,
	title={{}}
	
	
		,
	journal={{Iran Oil Ministry Annual Bulletin}}
		
			5
		
	

}

@book{b2,
	
	
		,
	title={{Testing the Validity of CAPM and APT in the Oil, Gas and Fertilizer Companies}}
		,
	author={{
			HZubairi
		} and {
			FarooqSh
		}}
		
		
	

}

@incollection{b3,
	
	
		,
	title={{}}
	
	
		,
	journal={{Iran Oil Ministry Annual Bulletin}}
		
	
	,
	note={5th Edition,(available in Persian}

}

@incollection{b4,
	
	
		,
	title={{}}
		,
	author={{
			NaeemAnsari
		} and {
			Zubairi
		}}
		
	
	
		,
	journal={{Financial Management in Pakisan}}
		
			,
	year={2005}
		
	

}

@book{b5,
	
	
		,
	author={{
			EFama
		} and {
			FrenchK
		}}
		
		,
	title={{The Capital Asset Pricing Model: Theory and Evidence}}
				
			,
	year={2004}
		
	

}