Duka, Cecilio D. <br/><br/>
Constitutional law 1 / 
Constitutional law 1 / 
 - 2021 edition. 
 - Manila, Philippines :  Rex Book Store,  2021. 
 - xxiii, 356 pages   23 cm. 
<br/><br/><label>ISBN: </label>9786210427455 
<br/><br/><label>LC Class. No.: </label>KPM 1750 .A9  / .D885c 2020