@book{9176,
	author = {Tilley, Scott R. and Rosenblatt, Harry J.,},
	title = {Systems analysis and design /},
	publisher = {Cengage Learning,},
	year = {2017.},
	series = {Shelly Cashman series},
	address = {Boston, MA :},
	edition = {Eleventh edition.},
	note = {Includes index.}
}