en.wikipedia.org
en.wikipedia.org
en.wikipedia.org
britannica.com
worldhistory.org
World History Encyclopedia
https://www.worldhistory.org › Ghana_Empire
academia.edu
jstor.org
britannica.com
oxfordre.com
Oxford Research Encyclopedia of Social Work
https://oxfordre.com › africanhistory › abstract › 10.1093 › acrefore › 9780190277734.001.0001 › acrefore-9780190277734-e-1360
britannica.com
researchgate.net
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