Foundations of computer studies 1 
Pepela crowther 
 - 1st 
 - nairobi   east africa publishers  2008 
 - 224p. 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>9789966252821 
<br/><br/><label>LC Class. No.: </label>QA 77 .P47 2008