Yathi, Nithyachaithanya <br/><br/>
Oorjathandavam 

 - 3rd ed. 
 - Kollam  Sankeerthanam  2001 
 - 176p. 
<br/><br/>   
<br/><br/><label>Subjects--Index Terms: </label>Physics-Popular works-Science  Science-Popular works-Physics 
<br/><br/><label>Universal Decimal Class. No.: </label>5:001=M  / YAT