@book{41949,
	author = {Akhter, Md. Masud},
	title = {Studies on the gondal development and some other aspects of the biology of Oreochromis Nilotica /},
	publisher = {University of Dhaka,},
	year = {1992.},
	address = {Dhaka :},
	note = {Thesis (MS )--Department of Zoology, University of Dhaka, Session : 1987-1988}
}