Barcelon, Dolores G., <br/><br/>
Plane trigonometry 
Dolores G. Barcelon 
 - Bulacan :  Trinitas Publishing ;  2003. 
 - 228 pages :  figures, shapes ;  26 cm. 
<br/><br/><label>ISBN: </label>9714204119 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry--Problems, exercises, etc.<br/>Plane trigonometry--Study and teaching. 
<br/><br/><label>Dewey Class. No.: </label>516.24   / B235p