3GE collection on mathematics :  introduction to integration / 

 - New York:  3G E-Learning,  2021. 
 - x, 250 p.  
<br/><br/>Includes reference and index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9781984647368 
<br/><br/><label>Dewey Class. No.: </label>515.43   / T531 2021