Oraiz, Josefina M. <br/><br/>
Development of technology-enhanced lectures in Trigonometry 
Josefina M. Oraiz 
 - Quezon City  New Era University  2009. 
 - xiii, 87p. 
<br/><br/>Mathematics Education 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Mathematics education
<br/><br/><label>LC Class. No.: </label>T-00554