Tahirkheli, R.A.K., Dongli, S., Yushang, P., Wanming, D., Yuquan, Z., Baqri, S. and Dawood, H. 1990. Review of Stratigraphy of the Upper Hunza Valley (UHV), NW Karakoram, Pakistan. Journal of Himalayan Earth Sciences. 23, 1 (Nov. 1990), 203-214.