Perera, Anura C. <br/><br/>
විද්‍යාව විනෝදය 
= Widya Winodaya 


 - Nugegoda:  Sarasavi Publication,  2022. 
 - 162  p.;  22 cm 
<br/><br/><label>ISBN: </label>9789553121233 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences and mathematics
<br/><br/><label>Dewey Class. No.: </label>507  / PER