@book{90964,
	author = {Cooper, Donald R., and Schindler, Pamela S.,},
	title = {Business research methods /},
	publisher = {Irwin/McGraw-Hill,},
	year = {2001},
	series = {The Irwin/McGraw-Hill series in operations and decision sciences},
	address = {Boston, MA. :},
	edition = {Seventh Edition}
}