(1) Sources
1.1 Published sources
Dafaa Jammoo. Huursaa [ሁርሳ, The Hursa River (at Aira)]. Addis Ababa 1977 [1969 A.M.; book includes traditional songs] [View online]
—. Aada Oromoo Wallagga [_ _ _, The culture of the Wallaga-Oromo]. Addis Ababa 1982 [1974 A.M.]
—. Gumbii oduu [_ _ _, Reservoir of Stories], vol. 1. Addis Ababa 1975 A.M.
—. Kuusaa sagalee Oromoo [_ _ _, Dictionary of the Oromo language]. Addis Ababa 1980 A.M.
—. Saffuu biya keesaa [_ _ _, Cultural values of the country]. Addis Ababa 1991 [1983 A.M.]
—. Amala waaqeeffannaa saba Oromoo [_ _ _, Worship customs of the Oromo people]. Addis Ababa 1994 A.M.
1.2 Manuscripts
1.2.1 ELM Hermannsburg Archive
Dafaa Jammoo. “Gott gebühren alle Ehren” [All honours are due to God] and “Der wahre Weg” [The true way]. Hymns translated by Dietrich Wassmann and put into rhymed song form by Theodor Werner. [Read online]
—. Seenaa German Hermannsburg missiyoon [_ _ _, History of the German Hermannsburg Mission]. Manuscript, n.d. [Ref. Code: ?]
- Cf. Reports of the Annual Missionary Conference in 1968/69 [Ref. Code: AE 2 – 2.103]
—. Seenaa Qes Dafaa Jammoo [_ _ _, History of Qes Dafaa Ǧammoo]. Manuscript, n.d. [Ref. Code: ?]
—. Letters and Speeches. [Ref. Codes: AE 1 – 1.24, 1.314; AE 2 – 2.3000; AE 4 – 4.33-I]
Grabe, Hermann. “Meine erste Begegnung mit Dafa und seinem Bruder Fajisa. Erzählt nach Aufzeichnungen von Hermann Grabe”. 6 pages. [Ref. Code: AEA 1 – 1.24]
Kumera Gemtesa. Qes Daffa Djammo: The Man and His Ministry. B.Th. paper submitted to Mekane Yesus Seminary. Addis Ababa, 1990. [Ref. Code: AE 4 – 4.33-II]
1.2.2 Unknown location
Dafaa Jammoo. Gumbii oduu [_ _ _, Reservoir of stories], vol. 2. Manuscript, 1982 A.M.
—. Me Wallaggaan hubanna! [_ _ _, Let us understand Wallagga]. Manuscript, n.d.
—. Yo yaadatani nama dinzeeqa! [_ _ _, Think of it and marvel!]. Manuscript, n.d.
(2) Literature
2.1 Encyclopedic articles
Bauerochse, Ernst. “Dafaa Ǧammoo”, in Encyclopaedia Aethiopica, vol. 2, ed. S. Uhlig, p. 56. Wiesbaden: Harrassowitz, 2005.
Dirshaye Menberu. “Jammo, Daffa”, [Online] Dictionary of African Christian Biography, 2004. [Read online]
2.2 Other secondary literature
Arén, Gustav. Envoys of the Gospel in Ethiopia: In the Steps of the Evangelical Pioneers 1898-1936. Stockholm: EFS förlaget; Addis Ababa: The [Ethiopian] Evangelical Church Mekane Yesus, 1999. [See chapter 8: “A Dream Came True – The Legacy of Louis Harms 1928-1936”; view online]
Bauerochse, Ernst. Zum Hirten berufen. Hermannsburg: Missionshandlung, 1959. [42 pages]
—. Ihr Ziel war das Oromoland: Die Anfänge der Hermannsburger Mission in Äthiopien. Münster: Lit, 2006. [See index, p. 396]
Kanatu Karorsa. Rev. Daffa Jammo and I: The Reminiscence of Our Lives in My Own Words. Meadville, PA: Christian Faith Publishing, 2024. [Amazon.com]
Pankhurst, Sylvia. Ethiopa: A Cultural History. Woodford Green: Lalibela House, 1955. [For duplicating machines and printing presses, see p. 523-27]
Schendel, Gunther. ” ‘Our Pastor Daffa Djammo’: The European Visit of an Ethiopian Church Leader (1952) – A Case Study on Networks and Religous Transfer During the Time of the ‘Missiological Aggiornamento’ after World War II”, in Investigations on the “Entangled History” of Colonialism and Mission in a New Perspective (20th Ludwig Harms Symposium), ed. by M. Fischer and M. Thiel, p. 77-94. Berlin and Münster: Lit Verlang, 2022. [Google Books (introduction only)]
Tsion Dafaa. Dafaa Jammoo [working title]. Forthcoming book.
Wassmann, Dietrich. Der Durchbruch des Evangeliums im Gallaland. Hermannburg: Missionshandlung, 1948 [See p. 42-60]
—. Der Ziegenjunge von Aira [The Goat Herder of Aira]. Hermannsburg: Missionshandlung Hermannsburg, 1947. [6th ed. 1965]