For Assyria, see C.H.W. Johns, Assyrian Deeds and Documents 3 (Cambridge: Cambridge Univ. Press, 1924), pp. 542–546. For the Neo-Babylonian and Persian periods, see Bruno Meissner, Babylonien und Assyrien 1 (Heidelberg: Winter, 1920), pp. 365–366; and his Warenpreise in Babylonien (Berlin: de Gruyter, 1936), pp. 35–36. See also, Mendelsohn, Slavery in the Ancient Near East, p. 117; and Muhammed Dandamaev, Slavery in Babylonia, from Nabopolassar to Alexander the Great (626–331 B.C.) (DeKalb, IL: Northern Illinois Univ. Press: 1984), pp. 195–206.