@book{43484,
	author = {Nasreen, Shamima.},
	title = {Transformation of sulphur in soil and its contribution to crop production /},
	publisher = {University of Dhaka ,},
	year = {2001.},
	address = {Dhaka :},
	note = { Thesis (PhD)--Department of Soil Science, University of Dhaka, 2001. }
}