Author : Dr. Triloki Nath Srivastava & Ramdev Mishr (Gaangay)
Book Code : 3049
Language : Hindi
ISBN : 978-93-5167-874-8
Author : Dr. J. C. Johari, Dr. V. C. Sinha, Dr. A. K.Chaturvedi
Book Code : 5109
Language : English
ISBN : 978-93-91726-04-1