* {{cite book | last=Africa | first=International Scientific Committee for the drafting of a General History of | title=General History of Africa | publisher=UNESCO Publishing | publication-place=London : Berkeley, Calif., U.S.A. : Paris | date=1992-12-31 | isbn=978-92-3-101711-7}}
<ref name="r314">{{cite book | last=Africa | first=International Scientific Committee for the drafting of a General History of | title=General History of Africa | publisher=UNESCO Publishing | publication-place=London : Berkeley, Calif., U.S.A. : Paris | date=1992-12-31 | isbn=978-92-3-101711-7 | page=}}</ref>