Discrete mathematics / 
edited by: Aleksandar Mratinkovic et al. 
 - 2nd ed. 
 - New York:  3G-learning,  2020. 
 - xii, 320 p. 
<br/><br/>Include reference and index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9781984637314 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Dewey Class. No.: </label>511.3  / T531 2020.