@book{84767,
	author = {Aminuzzaman, Salahuddin M.  and Dan, Amy. and ebrary, Inc.},
	title = {Essentials of social research /},
	publisher = {Osder Publications,},
	year = {2011.},
	address = {Dhaka :},
	url = {http://www.columbia.edu/cgi-bin/cul/resolve?clio7608651}
}