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Dyfyniad Arddull ChicagoFREEMAN ROGER L. TELECOMMUNICATIONS TRANSMISSION HANDBOOK. 4TH ED. NEW YORK: JOHN WILEY AND SONS INC, 1998.
Dyfyniad MLAFREEMAN ROGER L. TELECOMMUNICATIONS TRANSMISSION HANDBOOK. 4TH ED. JOHN WILEY AND SONS INC, 1998.
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