Ampongan, Omar Erasmo G. <br/><br/>
Income taxation / 
Omar Erasmo G. Ampongan 
 - 13th edition 
 - Recto, Manila:  Conanan Educational Supply,  2014. 
 - 571p.;  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Income Taxation -- Philippines.