Narejo, Ghous Bakhsh. <br/><br/>
Study of international gateway exchange-3 karachi / 
Narejo Ghous Bakhsh....[et.al.] 
 - MUET, Jamshoro :  Electronic Engineering, IICT,  1990. 
 - 127p. :  ill. ; 30 cm. 
<br/><br/>Includes References. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic Engineering.
<br/><br/><label>Dewey Class. No.: </label> / NAR