@book{8953,
	author = {Rehan Haider Zaidi},
	title = {Computer based pabx system},
	publisher = {NUST School of Electrical Engineering & Computer Science,},
	year = {2005},
	address = { Isalamabad;},
	note = {Supervisors : Mr. Tauqeer, Mr. Nasir Mahmood.},
	url = {http://10.250.8.41:8080/xmlui/handle/123456789/29269}
}