The efik and their neighbours
2005
A history of Oron people of the lower Cross River basin
1984
Slavery and slave trade in Nigeria
2010
African history
1974
History, Culture, Diasporas and Nation Building
2012
African dimensions of American cultures
1994
From slavery to public service: Robert Smalls, 1839-1915
1971
Prelude to disaster
1973
Black Brotherhood
1970
Education for sustainable democracy
2004
Contemporary issues on slavery and the Black world
2003
Knowledge for service
2004
Historia de la esclavitud negra en las Américas y el Caribe
1995
Old Calabar studies
1986
Diasporas and homelands
2013
African studies
2011
Perspectives and methods of studying African history
1984
Issues in the 1995 Nigerian draft constitution
1999
Akwa Ibom State
1994
Nigeria contemporanea
1992
The Oron Nation in contemporary Nigeria
1998