罗伯特·R·索卡尔(页面存档备份,存于互联网档案馆), United States Holocaust Memorial Museum Collection, Gift of the Gratz College Holocaust Oral History Archive National Academy Member Profile (页面存档备份,存于互联网档案馆)
便西拉的字母Philology 30 (1907) 95-132. Tobias Lachs, Samuel, The Alphabet of Ben Sira, Gratz College Annual of Jewish Studies 11 (1973), 9-28. SIRACH, THE ALPHABET OF(页面存档备份,存于互联网档案馆)