Laïla Nehmé, “The Nabataean and Nabataeo-Arabic Inscriptions,” in Laïla Nehmé, ed., The Darb al-Bakrah: A Caravan Route in North-West Arabia Discovered by Ali I. al-Ghabban: Catalogue of the Inscriptions (Riyadh: Saudi Commission for Tourism and National Heritage, 2018), pp. 185–186.