Navale, G.K.B., and S.C. Srivastava. 1969. “Petro-Palynological Study of the Coals Exposed Near Gopal Prasad of Talcher Coalfield (Orissa), India”. Journal of Palaeosciences 18 (1-3):258-63. https://doi.org/10.54991/jop.1969.843.