Padua, Roberto N.  <br/><br/>
Fundamentals of educational research and data analysis (a PAFTE textbook development project) / 
Roberto N. Padua, Rosita G. Santos.  
 - Quezon City :  Katha Publishing,   c1998. 
 - 130 p.  
<br/><br/>
<br/><br/><label>ISBN: </label>971-574-012-X 
<br/><br/><label>Dewey Class. No.: </label>Fil 001.42 P136 1998