Lao, Joel T. <br/><br/>
Pre-calculus for grade 11 senior school science, technology, engineering and mathematics/ 

 - Intramuros Manila  Mindshapers,co. inc  2019 
 - 196p.  .ill 
<br/><br/><label>ISBN: </label>978-621-406-217-1 
<br/><br/><label>Dewey Class. No.: </label>512.1