Plane trigonometry / 
Edwin D. Ibanez [and five others]. 
 - Malabon City :  Jimczyville Publications,  c2014. 
 - iv, 202 pages :  illustrations ;  26 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9789710161881 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry.