Author : Dr. B.N. Gupta, Dr. Shivnarayan Gupta, Nitin Gupta

Book Code : 4707

Language : Hindi

ISBN : 978-93-89356-74-8

Author : Dr. Dinesh Pratap Singh, Nitin Gupta

Book Code : 6994

Language : Hindi

ISBN : 978-93-88724-43-2

Author : Dr. Dinesh Pratap Singh, Nasir Ahmed, Nitin Gupta

Book Code : 6897

Language : English

ISBN : 978-93-88117-20-3