Choubey, K. R. Course in Mathematics: For the IIT JEE & other Engineering Entrance Examinations (Calculus) / by K. R. Choubey, Ravikant Choubey and Chandrakant Choubey - Chandigarh: Pearson, 2011. - Vp.; 24 cm. ISBN: 9788131761588 Dewey Class. No.: 510.2462 / CHO/C