Valencia, Edwin G. <br/><br/>
Income taxation :  principles and laws with accounting applications / 
Edwin G. Valencia, Gregorio F. Roxas. 
 - 6th ed. 
 - Baguio City :  Valencia Educational Supply,  2013. 
 - 721 p. ; 23 cm 
<br/><br/><label>ISBN: </label>9789719925149 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Income tax--Law and legislation--Philippines<br/>Income tax--Philippines