De leon, Hector S. De Leon, Hector M. Jr. <br/><br/>
The law on income taxation : with ill.ustrations, problems, and solutions, the. 13th ed. / 
Hector M. Jr. De leon, Hector S. De Leon 
 - xxiii, 606 p.; ill.; 22 cm 
<br/><br/><label>ISBN: </label>9789712330599 9789789712335