Calalang, Bayani Antonio U., Jr. <br/><br/>
To be logical/ 
Bayani Antonio U. Calalang, Jr. 
 - Mandaluyong City:  Books Atbp. Publishing Corp.,  c2011. 
 - xi, 147 pages ;  22 cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>971-0412-15-0 (pkb.)