Lactuan, Leo L., <br/><br/>Modern plane trigonometry / Leo L. Lactuan, Imelda R. Lactuan [editor].  - Tinajeros, Malabon City :  Jimczyville Publications,  ©2016.  - iv, 301 pages ;  23 cm. <br/><br/>Includes bibliographical references. <br/><br/><label>ISBN: </label>9789719676263 <br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry, Plane.<br/><br/><label>LC Class. No.: </label>QA533  / .L119 2016