Haneef, M., M. Q. Jan, and F. Rabbi. “Fracture Fills or ‘Sedimentary Dykes’ in the Lake Sediments of Jalala, NWFP, A Preliminary Report”. Journal of Himalayan Earth Sciences, vol. 19, no. 1, Mar. 1986, pp. 151-6, http://ojs.uop.edu.pk/jhes/article/view/1309.