@book{27734,
	author = {Amber Zahra & Bisma Ahmed},
	title = {UIT IVR ( Interactive Voice Response System)},
	publisher = {UIT,},
	year = {2002},
	address = {Karachi:},
	url = {https://drive.google.com/file/d/1J92rNO-932QzbUCPykf4FygjTuPImNb3/view?usp=sharing}
}