@book{42271,
	title = {Optimal area of fish sanctuary for conservation and management in Charan beel, Kalihati, Tangail /},
	publisher = {University of Dhaka, },
	year = {2009.},
	address = {Dhaka :},
	note = {Thesis (MS )--Department of Zoology, University of Dhaka, Session : 2006-2007.}
}