Santhakumari, B. [ed.] <br/><br/>
National seminar on Astrophysics and allied topics 

 - Trivandrum  Dept.of Physics, Govt. College for Women  1997 
 - 126p. 
<br/><br/> Biblog on p121-123 
<br/><br/><label>Universal Decimal Class. No.: </label>52  / SAN;1