1. Barth, H. (1857–1858). Reisen und Entdeckungen in Nord und Central Africa in den Jahren 1849 bis 1855 (5 vols.). Justus Perthes, Gotha.
2. Bruce-Lockhart, J., & Wright, J. (2000). Difficult and dangerous roads: Hugh Clapperton’s travels in Sahara an Fezzan 1822–1824. London: Sickle Moon Books.
3. Capot-Rey, R. (1953). Le Sahara Français (L’Afrique Blanche Française). Paris: Presses Universitaires de France.
4. Denham, D., & Clapperton, H. (1965). Narratives of Travels and Discoveries in Northern and Central Africa in the Years 1822–1824. London (reprinted as Mission ot the Niger III, Haklyt Society, 2nd Serie CXIX, ed. E.W. Bovill).
5. Duveyrier, H. (1864). L’exploration du sahara. Les Touaregs du Nord. Paris: Challamel.