Khan, Azher, Mohammad Tahir Shah, Liaqat Ali, and Wazir Mohammad. 2004. “Beneficiation Study of the Manganese Ores of the Saidgi Area, North Waziristan Agency, Pakistan”. Journal of Himalayan Earth Sciences 37 (1):191-97. http://ojs.uop.edu.pk/jhes/article/view/1585.