De Leon, Hector S. <br/><br/>
Philippine constitutional law :  principle and cases / 
Hector S. De Leon. 
 - Manila :  Rex Book Store,  c2012. 
 - xxxviii, 1123 p. 
<br/><br/><label>ISBN: </label>978-971-23-6037-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philippines--Constitutional law--Cases<br/>Philippines--Constitutional law