Das, Ashok, <br/><br/>
Lectures on gravitation / 
Ashok Das. 
 - Singapore ;  World Scientific,  c2011. 
 - xi, 338 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9789814329378 
<br/><br/><label>Subjects--Index Terms: </label>General relativity (Physics)--Textbooks.  Big bang theory--Textbooks 
<br/><br/><label>Dewey Class. No.: </label>531/.14  / DAS