Fundamental concepts of mathematics / 
3G E-Learning. 
 - New York:  3G E-Learning,   2020. 
 - xiii, 268 p.   col. 
<br/><br/>Includes reference and index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9781984637369 
<br/><br/><label>Dewey Class. No.: </label>510   / T531 2020 c.1