Tubo, Dennis V. <br/><br/>
Logic for right living / 
Dennis Villanueva Tubo. 
 - Intramuros, Manila :  Purely Books Trading & Publishing Corporation,  2013. 
 - xv, 183 pages :  Illustrations ;  24 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9789719983033 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.