De Leon, Erminda E., <br/><br/>
Math in a challenging world teacher's guide 5/ 
Erminda E. De Leon. 
 - Marikina City :  Instructional Coverage System Publishing, Inc.,  2017. 
 - 204 pages :  Tables, Illustrations;  27 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>971-719-491-2 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>510   / D346m