@book{13,
	author = {Stair, Ralph M., and Frydenberg, Mark},
	title = {Principles of information systems /},
	publisher = {Cengage,},
	year = {[2021]},
	address = {Boston, MA, USA :},
	edition = {Fourteenth edition.},
	url = {https://library.uec.edu.eg/cgi-bin/koha/opac-retrieve-file.pl?id=db307a589afec7f07802a89aabad198e}
}