Spencer, David A., M. Ghazanfar, and M.N. Chaudhry. “The Higher Himalaya Crystalline Unit, Upper Kaghan Valley, NW Himalaya, Pakistan”. Journal of Himalayan Earth Sciences 24, no. 1 (November 30, 1991): 109-125. Accessed January 4, 2025. http://ojs.uop.edu.pk/jhes/article/view/1395.