Ullah, K., Arif, M., & Shah, M. T. (2006). Petrography of Sandstones from the Kamlial and Chinji Formations, Southwestern Kohat Plateau, NW Pakistan: Implications for Source Lithology and Paleoclimate . Journal of Himalayan Earth Sciences, 39(1), 1-13. Retrieved from http://ojs.uop.edu.pk/jhes/article/view/1604