Sayab, Mohammad, Mohammad Asif Khan, and Mohammad Rafiq. 1999. “Rotated and Displaced Clay Balls As Kinematic Indicators Along Shear Zones in Sandstones of the Siwalik Group of Surghar-Shinghar Range, Trans-Indus Ranges, Pakistan”. Journal of Himalayan Earth Sciences 32 (1):89-104. http://ojs.uop.edu.pk/jhes/article/view/1525.