1. Adam BFEE (2007) Assessment of the physical growth of greater Khartoum using remote sensing, GIS techniques. P.G. diploma Project, African Regional Centre for Space Science, Technology Education in English (ARCSSTEE), Nigeria, 63 pp. In: Elagib NA (2011) evolution of urban heat island in Khartoum. Int J Climatol 31:1377–1388. doi: 10.1002/joc.2159
2. Ahmed AA, Ismail UHEA (2008) Sediment in the Nile River system. UNESCO-IHP-International Sediment Initiative, Khartoum
3. Alam SA, Starr M (2009) Deforestation and greenhouse gas emissions associated with fuelwood consumption of the Brick making industry in Sudan. Sci Total Environ 407:847–852
4. Bischoff W-A, Siemens J, Kaupenjohann M (1999) Solute leaching into groundwater—a comparison of field methods considering preferential flow. Wasser Boden 51:37–42
5. Bremner JM, Mulvaney CS (1982) Nitrogen total. In: Page AL (ed.) Methods of soil analysis. Agron. No. 9. Part 2: chemical and microbiological properties, 2nd edn. Am Soc Agron, Madison, WI, USA, pp 595–624