See: Levy, Thomas E.; Bettilyon, Megan; Burton, Margie M. (2016-10-31). "The Iron Age copper industrial complex: A preliminary study of the role of ground stone tools at Khirbat en-Nahas, Jordan". Journal of Lithic Studies. 3 (3): pp. 313–335. https://en.wikipedia.org/wiki/Khirbat_en-Nahas