Author : Dr. B. K. Mehta & Dr. B. P. Agarwal

Book Code : 7943

Language : English

ISBN : 978-93-81865-45-3

Author : Ramesh Chand Agarwal, Sanjay Agarwal

Book Code : 7876

Language : Hindi

ISBN : 978-93-5167-179-4

Author : Dr. Pushpa Sinha, Dr. V. C. Sinha

Book Code : 7739

Language : Hindi

ISBN : 978-93-5167-019-3