@book{9776,
	author = {Forouzan, Behrouz A},
	title = {Data communications and networking},
	publisher = {McGraw Hill},
	address = {New Delhi},
	edition = {5th},
	url = {https://libgen.is/book/index.php?md5=E50FCB97DA01BD8A3400BDEF51AED0E4}
}