ASHRAF, M.; QURESHI, M. H.; FARUQI, F. Quartzite an Ganister-Raw Materials for Refractories from N.W.F.P. and Punjab. Journal of Himalayan Earth Sciences, [S. l.], v. 7, n. 1, p. 89-100, 1975. Disponível em: http://ojs.uop.edu.pk/jhes/article/view/1120. Acesso em: 28 nov. 2024.