DURRANI, N.; WARWICK, P. Regional Characterization and Resource Evaluation of Paleocene and Eocene Coal-bearing Rocks in Pakistan. Journal of Himalayan Earth Sciences, [S. l.], v. 24, n. 1, p. 229-237, 1991. Disponível em: http://ojs.uop.edu.pk/jhes/article/view/1405. Acesso em: 4 jan. 2025.