Thanushree, Deb. <br/><br/>
Physics GCE Advanced Level :  Concepts Model Questions and Answers. 

 - 3rd Ed. 
 - Colombo :  Samudra Bokk Publications,  2018. 
 - various page no. 
<br/><br/><label>ISBN: </label>9789550202713 
<br/><br/><label>Dewey Class. No.: </label>530.76  / TAN