Author : Dr. V. C. Sinha & Ritika Sinha

Book Code : 9560

Language : English

ISBN : 978-93-5167-147-3

Author : Dr. V. C. Sinha & Dr. B. N. Gupta

Book Code : 6403

Language : Hindi

ISBN : 978-93-5167-522-8

Author : Dr. V. C. Sinha & Puspha Sinha

Book Code : 5225/6414

Language : Hindi

ISBN : 978-93-5167-991-2