Sharma, B. D. Differential equations / (Complete theory and all examples fully solved) for Honours and Post- Graduate Classes. B. D. Sharma. - New Delhi : Kedar Nath Ram Nath, c2003. - 124 p. : ill. ; 21 cm. Subjects--Topical Terms: 1. Mathematics.2. Differential equations. Dewey Class. No.: 515.33/ S531d