Physics;  Electronics; grade 13; resource book; unit 09 

 - Department of science  Maharagama  2022 
 - 149p  1 
 - 2024-03-01 
<br/><br/><label>Nat. Bib. No.: </label>0009368 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>ELE 
<br/><br/><label>Universal Decimal Class. No.: </label>530