Jan, M. Qasim, M.U.K. Khattak, M.K Parvez, and R.F. Windleym. 1984. “The Chilas Stratiform Complex: Field and Mineralogical Aspects”. Journal of Himalayan Earth Sciences 17 (1):153-69. http://ojs.uop.edu.pk/jhes/article/view/1275.