Connell, Dan & al. "Gura'" in the Historical Dictionary of Eritrea 2nd ed., p. 278–279. Scarecrow Press (Lanham), 2011. Accessed 24 Feb 2014.
Boulger, Demetrius. The Life of Gordon, pp. 230 ff. T. Fisher Unwin (London), 1896 reprinted Library of Alexandria, 1986.
developmentgap.org
"Famine Relief in Ethiopia: An UpdateArchived 2007-07-23 at the Wayback Machine" from Hearing Before the International Taskforce of the Select Committee on Hunger House of Representatives (101st Congress, 2nd Session), p. 75. US Government Printing Office (Washington), 8 May 1990. Accessed 27 Dec 2006.
Rasmuson, John. A History of Kagnew Station and American Forces in Eritrea, "ยง2: Lend-Lease and Project 19". Il Poligrafico (Asmara), 1973. Accessed 23 Feb 2014.
"Famine Relief in Ethiopia: An UpdateArchived 2007-07-23 at the Wayback Machine" from Hearing Before the International Taskforce of the Select Committee on Hunger House of Representatives (101st Congress, 2nd Session), p. 75. US Government Printing Office (Washington), 8 May 1990. Accessed 27 Dec 2006.