Bogisch, Markus (2005) "Qalat Seman and Resafa/Sergiupolis: Two Early Byzantine Pilgrimage Centers in Northern Syria" pp. 52–72 In Volt, Ivo and Päll, Janika (2005) Byzantino-Nordica 2004: Papers Presented at the International Symposium of Byzantine Studies Held on 7–11 May 2004 in Tartu, Estonia Morgenstern Society, Tartu University Press, Tartu, Estonia, page 64, ISBN9949-11-266-4
Bell, Gertrude Lowthian (2001) The Desert and the Sown: The Syrian adventures of the female Lawrence of Arabia Cooper Square Press, New York, page 306, ISBN0-8154-1135-9; originally published as Syria, the Desert and the Sown in 1907 by Heinemann, London OCLC234202529
