Khattak, Muhammad U.K., Debra S. Stakes, John W. Shervais, Muhammad Arif, and Mohammad Tahir Shah. 1995. “Stable Isotope Thermometry of the Nanga Parbat-Haramosh Massif and the Kohistan-Ladakh Arc, Northern Pakistan”. Journal of Himalayan Earth Sciences 28 (1):109-26. http://ojs.uop.edu.pk/jhes/article/view/1479.