Ali, Syed Riffat. , <br/><br/>
Digital switching systems :  system reliability and analysis / 
Syed Riffat Ali. 
<br/><br/><label>ISBN: </label>0070010692 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone switching systems, Electronic --reliability.<br/>Digital telephone systems --Reliability.<br/>Systems analysis.
<br/><br/><label>LC Class. No.: </label>TK6397   / .A54 1998