@book{42513,
	author = {MD. Azad Hossain Hazari},
	title = {Avoidance of selectivity bias through cluster analysis /},
	publisher = {University of Dhaka, },
	year = {2007.},
	address = {Dhaka :},
	note = {Thesis (MPhil )--Department of Statistics, University of Dhaka, Session : 1998-1999.}
}