Devasarma , Bijoy Krishna . <br/><br/>
Uchchatara Madhyamik Balbijnan .Part -1 /  Textual Documents 
Bijoy Krishna Devasarma , Ratnajit Bhattacharjyya. 
 - Ist ed / 
 - Hyderabad :  Orient Longman Ltd ,  1990. 
 - 140p ;  23Cm. 
<br/><br/><label>Subjects--Index Terms: </label>Physics T/G-Physics 
<br/><br/><label>Dewey Class. No.: </label>531  / Sh 11 U