PAREEK, H. On the Karharbari age of coal-measures of Ray-Bachra area, North Karanpura coalfield. Journal of Palaeosciences, [S. l.], v. 14, n. (1-3), p. 73–78, 1965. DOI: 10.54991/jop.1965.717. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/717. Acesso em: 13 may. 2024.