Saadawi, Tarek N. Fundamentals of telecommunication networks / Tarek N. Saadawi, Mostafa H. Ammar, Ahmed El Hakeem. - 1st ed. - New York : J. Wiley, 1994. - xvii, 485 p. ISBN: 0471515825 : Subjects--Topical Terms: Telecommunication systems.Computer networks.Data transmission systems.