Department of  Science  <br/><br/>
Physics;resorce book   G.C.E. (advanced level) unit 03 -oscillations and waves -grade 12 

 - Department of  Science Publisher   Maharagama   2020 
 - 108p  1 
 - 2024-03-04 
<br/><br/><label>ISBN: </label>978-955-654-898-3 
<br/><br/><label>Nat. Bib. No.: </label>0009362 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>SCI 
<br/><br/><label>Universal Decimal Class. No.: </label>540