1. Alexandre, Valentim, and Dias, Jill (1998). O Império Africano 1825–1990, Estampa.
2. Brown, Kathleen M. (1996). Good Wives, Nasty Wenches, and Anxious Patriarchs: Gender, Race, and Power in Colonial Virginia, University of North Carolina Press.
3. Candido, Mariana P. (2006). Enslaving Frontiers: Slavery, Trade and Identity in Benguela, 1780–1850. [Ph.D. dissertation, York University].
4. African Freedom Suits and Portuguese Vassal Status: Legal Mechanisms for Fighting Enslavement in Benguela, Angola, 1800–1830;Candido;Slavery & Abolition,2011
5. Hunt, Nadine, and Ojo, Olatunji (2012). Slavery and Africa and the Caribbean: A History of Enslavement and Identity since the 18th Century, I.B. Tauris.