Fujita, Takaaki <br/><br/>
Discrete mathematics/ 
Takaaki Fujita, Koichi Yamazaki 
 - Lewes Delaware, United States of America :  Excelic Press LLC,  c2020. 
 - ix,   211 pages 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781642245349 
<br/><br/><label>Dewey Class. No.: </label>511