De Leon, Hector S. <br/><br/>
Textbook on the Philippine constitution / 
Hector S. De Leon. 
 - 2008 
 - Manila :  Rex Book Store,  2009. 
 - li, 776 p.: 22.4 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-971-23-5104-4 
<br/><br/><label>LC Class. No.: </label>342.02599 D37t