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

 - Nawala  The open university of Sri Lanka  1986 
 - 73p.  28cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Applied physics
<br/><br/><label>Dewey Class. No.: </label>621.381537  / OPE