Author : Dr. V. C. Sinha, Dr. Alok Gupta
Book Code : 9820
Language : Hindi
ISBN : 978-93-5167-374-3
Author : Dr. V. C. Sinha, Dr. Alok Gupta, Dr. Sunil Kumar Gupta
Book Code : 8492
Language : English
ISBN : 978-93-5167-233-X
Book Code : 8491
ISBN : 978-93-5167-141-1