@book{43201,
	author = {Begum, Shahana },
	title = {Biology and ecology of some insect predators of the mustard aphid, Lipaphis erysimi Kalt and their potentiality in controlling the aphids / },
	publisher = {University of Dhaka,},
	year = {2002.},
	address = {Dhaka : },
	note = {Thesis (PhD )—Department of Zoology, University of Dhaka, 2002.

}
}