Author not established. Brhane Gherezghier. Date not established. EHREA archive: /library/documents/doc-1d2f7d005d7f3064c1799e34/
[1] Brhane Gherezghier. Original source: http://www.ehrea.org/brhaneg.pdf. Preserved original: /library/originals/ca804402f74f43ed9075f571a41a0062ca03871243df3fcc70a9084085c36478.pdf. SHA-256: ca804402f74f43ed9075f571a41a0062ca03871243df3fcc70a9084085c36478