Tubo, Dennis V.  <br/><br/>
Logic for right living / 
Dennis Villanueva Tubo 
 - rev. ed. 
 - Manila:  Unlimited Books Library Services & Publishing,  c2017. 
 - xiv, 179p. 
<br/><br/>Includes bibliographies  
<br/><br/><label>ISBN: </label>978-971-9654-63-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic 
<br/><br/><label>Dewey Class. No.: </label>Fil. 160 T790 2017