Methods of research :  a primer / 
Adanza, Estela G.;  Bermudo,  Pedrito Jose V.; Rasonabe, Marietta B.  
 - Manila :  Rex Book Store,  2009. 
 - xi, 239p.; 22cm. 
<br/><br/>includes glossary of terms, appendices, references, index 
<br/><br/><label>ISBN: </label>9789712353192 
<br/><br/><label>Dewey Class. No.: </label>Fil 001.4 A221 2009