Catalan, Nezel P., <br/><br/>
Understanding mathematics 4 / 
Nezel P. Catalan. 
 - Manila :  Vicarish Publication and Trading, Inc.,  2018. 
 - ii-x, 452 pages :  illustrations, tables, figures ;  27 cm.  
<br/><br/>Numbers and number sense. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-971-689-591-9 
<br/><br/><label>Dewey Class. No.: </label>FIL 510  / C3571