National integration in historical perspective : (a cultural regeneration in Eastern India) - Chakraborty, Rabindra Nath (Mittal Publications, 1985)
Originally presented as the author's thesis under the title: The studies in the socio-economic and cultural contact between Bengal and Orissa from 1038 A.D. to 1568 A.D., Univ., Sambalpur, Ph. D., 1985