@book{48065,
	author = {Karim, Mohammad Rezaul },
	title = {Regression-type estimator in multi-phase sampling / },
	publisher = {University of Dhaka, },
	year = {1978.},
	address = {Dhaka : },
	note = {Thesis (MS) -- Department of Statistics, University of Dhaka, 1978.
}
}