"Klimatafel von Khartoum / Sudan"(PDF). Baseline climate means (1961-1990) from stations all over the world (in German). Deutscher Wetterdienst. Archived from the original(PDF) on 5 March 2017. Retrieved 22 October 2016.
This article incorporates text from this source, which is in the public domain: Bechtold, Peter K. (2015). "Geographic regions"(PDF). In Berry, LaVerle (ed.). Sudan: a country study (5th ed.). Washington, D.C.: Federal Research Division, Library of Congress. pp. 63–66. ISBN978-0-8444-0750-0. Though published in 2015, this work covers events in the whole of Sudan (including present-day South Sudan) until the 2011 secession of South Sudan.
This article incorporates text from this source, which is in the public domain: Bechtold, Peter K. (2015). "Soils"(PDF). In Berry, LaVerle (ed.). Sudan: a country study (5th ed.). Washington, D.C.: Federal Research Division, Library of Congress. pp. 66–67. ISBN978-0-8444-0750-0. Though published in 2015, this work covers events in the whole of Sudan (including present-day South Sudan) until the 2011 secession of South Sudan.
This article incorporates text from this source, which is in the public domain: Bechtold, Peter K. (2015). "Hydrology"(PDF). In Berry, LaVerle (ed.). Sudan: a country study (5th ed.). Washington, D.C.: Federal Research Division, Library of Congress. pp. 67–70. ISBN978-0-8444-0750-0. Though published in 2015, this work covers events in the whole of Sudan (including present-day South Sudan) until the 2011 secession of South Sudan.
This article incorporates text from this source, which is in the public domain: Bechtold, Peter K. (2015). "Climate"(PDF). In Berry, LaVerle (ed.). Sudan: a country study (5th ed.). Washington, D.C.: Federal Research Division, Library of Congress. pp. 70–71. ISBN978-0-8444-0750-0. Though published in 2015, this work covers events in the whole of Sudan (including present-day South Sudan) until the 2011 secession of South Sudan.
"Klimatafel von Khartoum / Sudan"(PDF). Baseline climate means (1961-1990) from stations all over the world (in German). Deutscher Wetterdienst. Archived from the original(PDF) on 5 March 2017. Retrieved 22 October 2016.