Das , B.C.. <br/><br/>
Higher Secondary Calculus /  Textual Documents 
B.C.Das & B.N.Mukherjee. 
 - 11th ed. / 
 - Calcutta :  U.N.Dhur & Sons PVT.LTD ,  1991. 
 - 193p. ;  22cm. 
<br/><br/><label>Subjects--Index Terms: </label>Calculus G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>515.3  / Da 26 Hi