KHAN, M. A.; MALLICK, K. A.; KHAN, E. A. Economic Evaluation of Building Stones of Sindh. Journal of Himalayan Earth Sciences, [S. l.], v. 24, n. 1, p. 215-228, 1991. Disponível em: http://ojs.uop.edu.pk/jhes/article/view/1404. Acesso em: 4 jan. 2025.