De Leon, Hector S. <br/><br/>
Administrative law :  text and cases / 
by Hector S. De Leon and Hector M. De Leon, Jr. 
 - 5th ed 
 - Manila :  Rex Book Store,  c2005. 
 - xi, 445 p. 
<br/><br/><label>ISBN: </label>971-23-4017-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Administrative law--Philippines