TIWARI, R.; RAM-AWATAR. Sporae-dispersae and correlation of Gondwana sediments in Johilla coalfield, Son Valley Graben, Madhya Pradesh. Journal of Palaeosciences, [S. l.], v. 37, n. (1-3), p. 94–114, 1988. DOI: 10.54991/jop.1988.1604. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1604. Acesso em: 4 may. 2024.