Author : Dr. J. P. Goel, Dr. S. C. Rastogi, Dr. Sunita Bhagia & Er. Meera Goyal
Book Code : 1209
Language : English
ISBN : 978-93-6207-991-6
Author : Dr. Triloki Nath Srivastava & Ramdev Misr (Gangay)
Book Code : 1203
Language : Hindi
ISBN : 978-93-6207-681-6
