Hilbert, Yamandú H., and Rémy Crassard. “Middle and Late Pleistocene Lithic Technology from the Region of Dûmat Al-Jandal, Northern Saudi Arabia”. Proceedings of the Seminar for Arabian Studies, vol. 50, no. 2, Jan. 2020, pp. 27-43, https://www.archaeopresspublishing.com/ojs/index.php/PSAS/article/view/1186.