LewisIM (2002) A Modern History of the Somali. Oxford: James Currey.
3.
LulingV (1997) Come back Somalia? Questioning a collapsed state. Third World Quarterly18(2): 287–302.
4.
RotbergR (2003) Failed states, collapsed states, weak states: Causes and indicators. In RotbergR (ed.) State Failure and State Weakness in a Time of Terror. Washington DC: Brookings Institution Press.