The open university of Sri Lanka <br/><br/>
The degree of bachelor of science   level four  physics, electronics 

 - Nawala  The open university of Sri Lanka 
 - 126p.  28cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physcis
<br/><br/><label>Dewey Class. No.: </label>621.351  / OPE