1. Afifi T (2011) Stealth environmental influences on economic migration in Egypt. Africa Initiative Discussion Paper Series, 1. https://www.cigionline.org/publications/stealth-environmental-influences-economic-migration-egypt
2. Afifi T, Govil R, Sakdapolrak P, Warner K (2012) Climate change, vulnerability and human mobility: perspectives of refugees from the east and horn of Africa. Clim Change 1:60. https://www.refworld.org/reference/regionalreport/unhcr/2012/en/91131
3. Afifi T, Warner K (2008) The impact of environmental degradation on migration flows across countries (No. 5; UNU-EHS Working Paper). UNU-EHS. http://collections.unu.edu/view/UNU:1894. Accessed 21 June 2018
4. Ait Hamza M, El Faskaoui B, Fermin A (2009) Morocco case study report migration and environmental change in Morocco: the case of rural oasis villages in the Middle Drâa Valley. Erasmus University. https://maithamza.files.wordpress.com/2010/12/migration-and-environmental-change-in-morocco-the-case-ait-hamza-mohamed.pdf
5. Auclair L, Zaafouri MS (1996) La sédentarisation des nomades dans le sud Tunisien: Comwrtements énergétiques et desertification. Secheresse 7:17–24. https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/autrepart/010013207.pdf