@book{84923,
	author = {Hanan Elsayed Moussa Elsayed and Kamal Ahmed Abed , },
	title = {Preformance characteristics of heat exchangers considering fouling effect / },
	publisher = {Hanan Elsayed Moussa Elsayed , },
	year = {2003},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}