Sanchez, Custodiosa A. <br/><br/>
Methods and techniques of research. 

 - 3rd ed. 
 - Manila :  Rex Book Store,  c1998. 
 - 263 p. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9712323013 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methods.