Bodhinayake, Dhanasiri <br/><br/>
විද්‍යා පර්යේෂණ 
 Vidyaa paryeeshana 

 - Nugegoda  Sayans   1980 
 - 82p.,  20 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scientific research <br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>5.0015  / BOD