Serrano, Erlinda D.  <br/><br/>
Principles of teachings 1/ 
Erlinda D. Serrano  
 - 	  
 - Quezon city, Philippines,   c2015. 
 - xii, 168 pages:   illustrations;  25cm. 
<br/><br/><label>ISBN: </label>978-971-9656-08-1 
<br/><br/><label>Dewey Class. No.: </label>Fil. 371.102 S481 2015