Howard Crosby Butler eds., The southern Ḥaurân, Division 2, Ancient architecture in Syria: Section A, Southern Syria ; Part 2, Late E.J. Brill Ltd., Leiden 1909; p. 80-83
Enno Littmann, David Magi, F. S. Duane Howard, Crosby Butler eds, Syria: publications of the Princeton University Archaeological Expeditions to Syria in 1904 - 5 and 1909 (Div. 3, Sect. A ; 2) — 1910, pp. 42-43
