Kodithuwakku , Godwin <br/><br/>
පර්යේෂණ ලෝකයට පිවිසෙමු 

 - Baththaramulla :  Reaearch and development ,  [d.n] 
 - 95 P . :  Charts , Graphs ;  21 cm  
<br/><br/><label>ISBN: </label>9789558973035 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methodology 
<br/><br/><label>Subjects--Index Terms: </label>Research methodology 
<br/><br/><label>Dewey Class. No.: </label>001.4