የባሕረ ሐሳብ ትምህርት ለዘመን አቆጣጠር፣ ለከዋክብት እና ለአየር ትንበያ ጥናት መጽሐፈ ሄኖክ መነሻ: ዮኃንስ ደምስ. Journal-of-Ethiopian-Church-Studies/የኢትዮጵያ-ቤተ-ክርስቲያን-ጥናት-መጽሔት-Live , [S. l.], v. 6, n. 6, p. 74–103, 2018. Disponível em: https://journals.eotcmk.org/index.php/files/article/view/38. Acesso em: 6 dec. 2025.