TURVEY, Keith. <br/><br/>
Primary computing & digital technologies: knowledge, understanding & practice/   Ix,ill.317p. 
Keith Turvey, John Potler, Jeromy Burton.-  
 -   7th ed.-  
 -   SAGE,   2016 
<br/><br/> “It includes index and references” 
<br/><br/><label>ISBN: </label>ISBN: 978-1-4739-6156-2