Chawala, Kartar Lal R. <br/><br/>
Design & fabrication of Acoustic coupler interfaced P.A.B.X. / 
Kartar Lal R. Chawala. : Qadir Bux Soomro & M. Bachal Khoso. 
 - Muet Jamshoro :  Computer System Engineering,  1989. 
 - xii, 75p. : ill. ;  30 cm. 
<br/><br/>Including Reference. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer System Engineering.
<br/><br/><label>Dewey Class. No.: </label> / CHA