by Niyogi, Surendraprasad.
by Chatterji, Suniti Kumar.
by Majumdar, R. C. (Ramesh Chandra), ,1888-1980.
by Dasgupta, Shashibhushan.
by Chaudhary, Roop L. (Roop Lal).
by De, Sushil Kumar.
by Chatterjee, Hiralal ; Sastri, K. A. Nilakanta.