Elements of Logic:  An Integrative Approach / 
Maboloc, Christopher Ryan 
 - Recto Avenue,Manila:  REX Book Store,Inc.,  2012. 
 - x, 169p.: 
<br/><br/><label>ISBN: </label>978-971-23-6232-3 
<br/><br/><label>Dewey Class. No.: </label>M 160 M115 2012