| Kaplan, Steven (2001). "Ethiopian Jews." The Shorter Jewish Encyclopaedia 10: 755-768. (Russian). |
| Kaplan, Steven (2003a). "Abba; Abba Elyas; Aescoly (Weintraub), Aaron Zeev; Ambobar; Ayhud; Baqadami Gabra Egzi'abaher; Benjamin of Tudela; Beta Israel Calendar; Beta Israel". Encyclopedia Aethiopica. Uhlig, S. Wiesbaden.1: 9, 9, 112, 225, 408-410, 480, 530, 552-559, 672-673. |
| Kaplan, Steven (2003b). "Ethiopia, Judaism in". The Encyclopedia of Judaism. J. Neusner, A. J. Avery-Peck and W. Scott Green. Boston, Brill Leiden. IV: 1741-1753. |
| Kidane, H. (2003). "Arde'et". Encyclopedia Aethiopica. S. Uhlig. Wiesbaden. 1: 326-327. |
| Munro-Hay, S. (2003). "Ark of the Covenant". Encyclopedia Aethiopica. S. Uhlig. Wiesbaden. 1: 340-341. |
| Salamon, Hagar (2003). "Barya, Buda". Encyclopedia Aethiopica. S. Uhlig. Wiesbaden. 1: 489-490, 633-635. |
| Weil, Shalva. (2002). "Abraham Adgaeh". Encyclopaedia Aethiopica. S. Uhlig. Wiesbaden: 1: 48 |
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