アトバラ
↑ "'Atbarah, or Atbara (The Sudan)" (description), Encyclopædia Britannica, 2007, webpage: EB-Atbara.
↑ "Atbara", Encyclopedia Britannica, 1911
↑ Winston Churchill, The River War, 2 vols. (1899); abridged ed. Project Gutenberg (1902)
↑ Sudan: largest cities and towns and statistics of their population, World Gazetteer, Last Update: 2010-01-01.
"'Atbarah, or Atbara (The Sudan)" (description), Encyclopædia Britannica, 2007, webpage: EB-Atbara.