Ratnapala, Nandasena <br/><br/>
New Horizons in Research Methodology 

 - Ratmalana:  Sarvodaya Research Institute  1986. 
 - 164p.;  22 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methods
<br/><br/><label>Dewey Class. No.: </label>001.42  / RAT