Department of Education  <br/><br/>
ඉංජිනේරු තාක්ෂණවේදය  : 

 - Department of Education :  Maharagama ;  2014. 
 - 162 p ; 21 cm .  01 
 - 2025-07-15 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Nat. Bib. No.: </label>0005152 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>DEP 
<br/><br/><label>Universal Decimal Class. No.: </label>685