| http://community.worldlibrary.in/?AffiliateKey=NDL-MQ1138 | 
	| https://ndl.iitkgp.ac.in/ | 
	| http://www.i-scholar.in | 
	| ess.inflibnet.ac.in | 
	| ieeexplore.ieee.org | 
	| jgate.in | 
	| web.ebescohost.com | 
	| www.epw.in | 
	| www.iopscience.iop.org/journals | 
	| www.isid.org.in | 
	| www.jccc-ugcinfonet.in | 
	| www.jstore.org | 
	| www.springerlink.com | 
	| UGC-Infonet Digital Library Consortium | 
	| Directory of Open Access Journals | 
	| http://www.knimbus.com/user/auth.do |