I am compiling of list of literature reviews and came across the series "Studies on Emergencies and Disater Relief," which was produced by the Nordic Africa Institute with assistance from Sida. Several of the studies in the series are extensive literature surveys or state of the art reviews, so I have listed the relevant titles here. Most are available for download, unless otherwise indicated.
Internally Displaced, Refugees and Returnees from and in Mozambique (K. Wilson, 1994) [summary]
Internally Displaced, Refugees and Returnees from and in the Sudan: A Review (D. Nilsson, 2000) [summary and link to full-text]
Liberia - The Eye of the Storm: A Review of the Literature on Internally Displaced, Refugees and Returnees (D. Nilsson, 2003) [summary and link to full-text]
Refugee and Labour Movements in Sub-Saharan Africa: A Review (J. Baker, 1995) [summary and link to full-text]
Somali Refugees in the Horn of Africa: State of the Art Literature Review (S. Waldron & N. Hasci, 1995) [summary]Posted in Publications.