Author : Dr. J. C. Varshney, Nikhil Gupta and Sinha

Book Code : 6607

Language : Hindi

ISBN : 978-93-86908-52-0

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

Book Code : 4334

Language : Hindi

ISBN : 978-93-88117-70-8

Author : Dr. F. C. Sharma, Dr. R. U. Singh

Book Code : 4373

Language : Hindi

ISBN : 978-93-88117-81-4

Author : Dr. B. K. Mehta

Book Code : 5735

Language : Hindi

ISBN : 978-93-91726-02-7