Hanif, M., F. Ali, and B. Z. Afridi. “Depositional Environment of the Patala Formation in Biostratigraphic and Sequence Stratigraphic Context from Kali Dilli Section, Kala Chitta Range, Pakistan ”. Journal of Himalayan Earth Sciences, vol. 46, no. 1, Mar. 2013, pp. 55-65, http://ojs.uop.edu.pk/jhes/article/view/1658.