OPEN University of Sri Lanka <br/><br/>
Course of study leading to the degree of bachelor of science level four physics 

 - Nugegoda  Open University of Sri Lanka  1986 
 - 105 p. 
<br/><br/><label>ISBN: </label>139507 
<br/><br/><label>Dewey Class. No.: </label>537.5  / OPE