Bulathsinghala , Thathsarani  <br/><br/>
Solar system : 

 - S &T Group :   Thalangama ;  2024. 
 - 21 p; 21 cm .  01 
 - 2025-01-09 
<br/><br/><label>ISBN: </label>9786245712175 
<br/><br/><label>Nat. Bib. No.: </label>0011073 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>BUL 
<br/><br/><label>Universal Decimal Class. No.: </label>784