Chakrabarty, Dukhaharna . <br/><br/>
Ryanjan-Dabya /  Textual Documents 
Dukhaharna Chakrabarty. 
 - 1st ed. / 
 - Calcutta :  Biswabharati Granthalai ,  nd. 
 - 58p. ;  18cm. 
<br/><br/><label>Subjects--Index Terms: </label>Physics Optics Reference-Physics 
<br/><br/><label>Dewey Class. No.: </label>535  / C 349 R