MUKHERJEE, B.; GHOSH, A. Studies on the petrography and microfloristic of coals of Karharbari and Barakar stage from parts of North Karanpura coalfield, Bihar. Journal of Palaeosciences, [S. l.], v. 21, n. (1-3), p. 129–143, 1972. DOI: 10.54991/jop.1972.1478. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1478. Acesso em: 4 nov. 2024.