Khan, M. J., and W. Ahmad. “Clay Mineralogy of the Quaternary Lake Deposits of Peshawar Basin, At Jehangira, District Mardan, NWFP Pakistan”. Journal of Himalayan Earth Sciences, vol. 20, no. 1, Mar. 1987, pp. 143-52, http://ojs.uop.edu.pk/jhes/article/view/1320.