Fajardo, Ira A. <br/><br/>
Spherical trigonometry:  A Comprehensive approach/ 
Ira A. Fajardo. 
 - Revised Edition 
 - Malabon City:  Mutya Publishing House, Inc.,  c2013. 
 - 134 pages:  illustrations;  25 cm. 
<br/><br/> Includes references. 
<br/><br/><label>ISBN: </label>978-971-821-332-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry<br/>Trigonometry, Spherical
<br/><br/><label>Dewey Class. No.: </label>DFil 516.24  / F17s