Author: Sagar, Vidya
Publisher:Swastik Prakashan, New Delhi
Copyright:1973
Author: Majumder, Uma
Publisher:The National Library, Calcutta
Copyright:1987
Author: Ganhar, J. N.
Publisher:Ganhar Publications,New Delhi
Copyright:1973
Author: Lahiri, Nirmal Chandra
Publisher:Astro-Research Bureau, Calcutta
Copyright:1973
Author: Ghosh, Sunil Kumar Ghosh, A.
Publisher:Eastern Law House, Calcutta
Copyright:1973
Author: Skrine, C.P. Nightingale, Pamela
Publisher:Methuen, London
Copyright:1973
Author: Baxi, Smita J. Dwivedi, Vinod P.
Publisher:Abhinav Publications,New Delhi
Copyright:1973
Author: Sarkar,Jagadish Narayan
Publisher:Naya Prokash,Calcutta
Copyright:1987
Author: Al- Badaoni
Publisher:Idarah-i-Adabiyat-i-Delhi
Copyright:1973
Author:
Publisher:Nehru Science Centre-National Council of Science Museums, Mumbai
Copyright:2014
Author: Roy, M. P.
Publisher:Sterling Publishing, New Delhi
Copyright:1973
Author: Chandrakanta, Mahamahopadhyaya
Publisher:The Asiatic Society, Calcutta
Copyright:1973