Joseph S. Valacich <br/><br/>
Essentials of systems analysis and design 

 - 2nd 
 -  Prentice- Hall  2004 
 - 460 p 
<br/><br/><label>ISBN: </label>0- 13- 101605- 9 
<br/><br/><label>LC Class. No.: </label>QA 76.9.S88 .V345/