Plane geometry with basic trigonometry:  a simplified approach/ 
Felipe Sarmiento, Wilfredo N. De Castro 
 - Manila:  Unlimited Books,  2016. 
 - viii, 285 pages:  illustrations;  25 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9789719654162 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Plane -- Study and teaching 
<br/><br/><label>LC Class. No.: </label>Fil QA 455 .S27 2016