Plane trigonometry / 
Edwin D. Ibaņez ; Darwin O. Paguio ; Ediric D. Gadia ; Dynah D. Soriano ; Geraldine B. Fabay ; Mark Denice Y. Baquiran 
 - Malabon City :  Jimczyville Publications,  2014. 
 - iv, 202 p.; 25.5cm. 
<br/><br/><label>ISBN: </label>9789710161881 
<br/><br/><label>Dewey Class. No.: </label>Fil 513 P712 2014