@book{137642,
	author = {Cooper, Donald R. and Schindler, Pamela S.},
	title = {Business research methods /},
	publisher = {Irwin/McGraw-Hill,},
	year = {2003..},
	series = {The Irwin/McGraw-Hill series, operations and decision sciences},
	address = {New York :},
	edition = {8th ed.}
}