@book{42031,
	title = {Studies on the acute toxicity of urea and dimecron-100  scw and their mixtures of Nile Tilapia, Oreochromis niloticus (L.) /},
	publisher = {University of Dhaka, },
	year = {1999.},
	address = {Dhaka :},
	note = {Thesis (MS )--Department of Zoology, University of Dhaka, Session : 1995-1996.}
}