Das, B.C. . <br/><br/>
Integral Calculus including Differential Equations /  Textual Documents 
B.C.Das & B.N.Mukherjee. 
 - 20th ed. / 
 - Calcutta :  U. N. Dhur & Sons Pvt. Ltd. ,  1971. 
 - 448p. :  ill ;  19cm . 
<br/><br/><label>Subjects--Index Terms: </label>Integral Calculus Differential Equations G-Mathematics T/G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>517.3  / D 26 In