Zar'a Ya'qob <Aethiopien, K., & Haile, G. (1958). The epistle of humanity: Transl. by Getatchew Haile. Peeters.
Lua i Stíl Chicago (17ú heag.)Zar'a Ya'qob <Aethiopien, Kaiser>, agus Getatchew Haile. The Epistle of Humanity: Transl. by Getatchew Haile. Lovanii: Peeters, 1958.
Lua MLA (8ú heag.)Zar'a Ya'qob <Aethiopien, Kaiser>, agus Getatchew Haile. The Epistle of Humanity: Transl. by Getatchew Haile. Peeters, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.