Qasim m. Khalil & Junaid Saleem <br/><br/>
Implementing Open source PBX Using Asterisk 

 - Karachi:  UIT,  2003 
<br/><br/><label>Subjects--Personal Names: </label><br/>Computer Science
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bachelor of Computer Science (BS)
<br/><br/><label>Dewey Class. No.: </label>004.67072 QAS