@book{20799,
	author = {Valacich, Joseph S., and George, Joey F.},
	title = {Modern systems analysis and design /},
	publisher = {Pearson Education Limited,},
	year = {c2017.},
	address = {Harlow, England :},
	edition = {Eighth edition, Global edition.},
	note = {Includes bibliographical references and index.}
}