DURRANI, N. A. Review of Tertiary coal fields of lower Indus plain in Pakistan and adjacent areas of Gujrat and Rajasthan states in India. Journal of Himalayan Earth Sciences, [S. l.], v. 25, n. 1, p. 39-45, 1992. Disponível em: http://ojs.uop.edu.pk/jhes/article/view/1425. Acesso em: 4 jan. 2025.