Author : R. C. Agrawal, Sanjay Gupta

Book Code : 6281

Language : English

ISBN : 978-93-7741-613-3

Author : Sanjay Gupta, Pooja Nasa

Book Code : 8427

Language : English

ISBN : 978-93-6207-666-3

Author : Dr. V. C. Sinha, Dr. Alok Gupta, Dr. Jitendra Kumar Saxena

Book Code : 8561

Language : English

ISBN : 978-93-7741-883-0