@book{91040,
	author = {Cooper, Donald R., and Schindler, Pamela S.,},
	title = {Business research methods /},
	publisher = {McGraw-Hill/Irwin,},
	year = {2008},
	series = {The McGraw-Hill/Irwin series, operations and decision},
	address = {Boston :},
	edition = {Tenth Edition}
}