Logic basic principles of critical thinking / 
Willie A. Bunag, Joselito B. Angulo, Charmaine Adanza-Libarnes. 
 - x,231 pages :  ; (np) ; include references. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic--c2014--Manila--Newsprint.