Malitao, Arnel L. <br/><br/>
Essential logic / 
Arnel L. Malitao. 
 - Mandaluyong City :  National Book Store,  2003. 
 - 266 p.:   ill. 22.3 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9710863835 
<br/><br/><label>LC Class. No.: </label>160 M29