Discrete mathematics / 
Johnsonbaugh, Richard 
 - 5th ed. 
 - Singapore :  Pearson Education Asia Pte Ltd,  2001. 
 - xv, 621 p.: ill. ; 25.3cm. 
<br/><br/>include: index 
<br/><br/><label>ISBN: </label>9814096393 
<br/><br/><label>Dewey Class. No.: </label>C 510 J63 2001