Ratnapala, Nandasena <br/><br/>
New horizons in research methodology 

 - Colombo  Sarvodaya Reseach Institute  1986 
 - 164 p. 
<br/><br/><label>ISBN: </label>_ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methodology
<br/><br/><label>Dewey Class. No.: </label>1.42  / RAT