MISRA, B. K.; SINGH, B. Liptinite macerals in Singrauli coals, India: their characterization and assessment. Journal of Palaeosciences, [S. l.], v. 42, n. 1-3, p. 1–13, 1993. DOI: 10.54991/jop.1993.1128. Disponível em: https://www.jpsonline.co.in/index.php/jop/article/view/1128. Acesso em: 4 may. 2024.