Amarasinghe, Udesh Sasika <br/><br/>
Number system & computer architecture 

 - Colombo  S. Godage   2005 
 - 128p., ill.,  22 cm 
 - Pariganaka vidyaa poth pela 1 .
<br/><br/><label>Universal Decimal Class. No.: </label>681.31  / AMA